Fatto generale: 28552 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 28552 is an unremarkable number.
Trivia: 28552 is an unremarkable number.
Data storica: March 3rd is the day in 1875 that the first ever organized indoor game of ice hockey is played in Montreal, Canada as recorded in The Montreal Gazette.