ALMATY (Reuters) - Nursultan Nazarbayev remains omnipresent in Kazakh politics days after his surprise resignation, hinting he will effectively retain a share of power with the loyalist parliament speaker who automatically stepped into his shoes.

FILE PHOTO: Acting President of Kazakhstan Kassym-Jomart Tokayev (R) shakes hands with his predecessor Nursultan Nazarbayev during a joint session of the houses of parliament in Astana, Kazakhstan March 20, 2019. Kazakh Presidential Press Service/Handout via REUTERS

In stepping down on Tuesday, Nazarbayev, the only ruler Kazakhstan has known since the Soviet era almost three decades ago, formally elevated Kassym-Jomart Tokayev to the presidency -though Nazarbayev kept other senior decision-making posts.

The arrangement might be reassuring to investors in the major energy-producing country who hope the 78-year-old Nazarbayev would oversee a smooth transition of power to a permanent successor - who has yet to be identified.

On Thursday, Nazarbayev and Tokayev together spoke by telephone with Russian President Vladimir Putin, Putin’s office said in a statement - an unusual move for the Kremlin leader who usually talks one-on-one with counterparts.

Putin expressed confidence that Nazarbayev “will continue to actively take part in work aimed at strengthening the cooperation within the Eurasian Economic Union”, a Moscow-led trade bloc of former Soviet republics.

Putin and Tokayev also agreed the latter would visit Russia in the near future.

In another display of closeness, Nazarbayev and Tokayev took part on Thursday in festivities in the capital Astana related to the Nowruz holiday celebrated on the spring equinox across Central Asia and parts of the Middle East.

Astana itself is now being renamed Nur-Sultan on Tokayev’s suggestion, despite some opposition from residents.

Photographs published by the president’s office showed Nazarbayev wearing a traditional Kazakh coat and fur hat and waving to onlookers, shaking hands with people and blessing newlyweds, with a smiling Tokayev by his side.

Official media now routinely refer to Nazarbayev as Yelbasy, the national leader.

Tokayev’s first personnel decision was nominating Nazarbayev’s eldest daughter Dariga for the Senate speaker position he had vacated, raising the likelihood that she would eventually take over as full-time president.

Tokayev is set to serve for the rest of Nazarbayev’s term, which ends in April 2020. No candidates have yet announced plans to run in elections then, but there is little doubt that the one who secures Nazarbayev’s backing would win.