SAN FRANCISCO, Dec 19 (AFP) - Twitter users voted on Monday to oust owner Elon Musk as chief executive in a highly unscientific poll he organized and promised to honor, just weeks after he took charge of the social media giant.

A total of 57.5 percent of more than 17 million accounts voted for him to step down. Musk, who also runs car maker Tesla and rocket firm SpaceX, has not yet reacted publicly to the results.

"The question is not finding a CEO, the question is finding a CEO who can keep Twitter alive," the South African-born billionaire tweeted before the vote closed.

In a response to another tweet, he added: "No one wants the job who can actually keep Twitter alive. There is no successor."

Musk has fully owned Twitter since October 27 and has repeatedly courted controversy as CEO, sacking half of its staff, readmitting far-right figures to the platform, suspending journalists and trying to charge for previously free services.

Analysts have also pointed out that the stock price of Tesla has slumped by one-third since Musk's Twitter takeover. The share price briefly rallied by 3.3 percent on Monday before fading.

"It's hard to ignore the numbers since [the Twitter] deal closed," tweeted investment expert Gary Black, saying he reckoned Tesla's board was putting pressure on Musk to quit his Twitter role.

In discussions with users after posting his latest poll, Musk renewed his warnings that the platform could be heading for bankruptcy.