General fact: 52493 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 52493 is an uninteresting number.
Trivia: 52493 is a boring number.
Historical date: September 20th is the day in 1973 that Billie Jean King beats Bobby Riggs in The Battle of the Sexes tennis match at the Houston Astrodome in Houston, Texas.