General fact: 9572 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 9572 is a boring number.
Trivia: 9572 is an unremarkable number.
Historical date: March 16th is the day in 1900 that Sir Arthur Evans purchased the land around the ruins of Knossos, the largest Bronze Age archaeological site on Crete.