[The Number of Billionaires Worldwide Hits a Record High in 2025, Driven by AI Investments] According to a recent report by wealth intelligence firm Altrata, as reported on the website of the U.S. magazine *Fortune*, the number of billionaires worldwide is expected to reach 3,795 in 2025, setting a new historical record. The total wealth of billionaires is projected to grow by 12.8% year-over-year, reaching $15.1 trillion, also a record high. This figure is equivalent to nearly one-quarter of the total market capitalization of the S&P 500 index constituents in the United States. Among these billionaires, 29 individuals have assets exceeding $50 billion, including Larry Page, Elon Musk, and Jeff Bezos. Specifically, the surge in AI investments has been identified as the primary driver of billionaire wealth growth, with many tech billionaires seeing significant increases in their net worth as their companies' artificial intelligence businesses expand. Billionaires are most inclined to allocate their wealth to the fields of sports and philanthropy. A total of 201 individuals either own sports teams or invest in sports franchises.