Fatto generale: 52572 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 52572 is a boring number.
Trivia: 52572 is an uninteresting number.
Data storica: December 8th is the day in 2004 that the Cuzco Declaration is signed in Cuzco, Peru, establishing the South American Community of Nations.