Fatto generale: 11529 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 11529 is an uninteresting number.
Trivia: 11529 is an unremarkable number.
Data storica: July 25th is the day in 315 that the Arch of Constantine is completed near the Colosseum at Rome to commemorate Constantine's victory over Maxentius at the Milvian Bridge.