Fatto generale: 9252 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 9252 is the number of necklaces with 10 white and 10 black beads.
Trivia: 9252 is a boring number.
Data storica: April 30th is the day in 1927 that the Federal Industrial Institute for Women opens in Alderson, West Virginia, as the first women's federal prison in the United States.