Fatto generale: 58500 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 58500 is an unremarkable number.
Trivia: 58500 is a boring number.
Data storica: March 1st is the day in 1990 that Steve Jackson Games is raided by the United States Secret Service, prompting the later formation of the Electronic Frontier Foundation.