Fatto generale: 25729 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 25729 is an uninteresting number.
Trivia: 25729 is an unremarkable number.
Data storica: June 10th is the day in 1980 that the African National Congress in South Africa publishes a call to fight from their imprisoned leader Nelson Mandela.