Fatto generale: 4255 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 4255 is a centered tetrahedral number.
Trivia: 4255 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: August 25th is the day in 1875 that Captain Matthew Webb became the first person to swim across the English Channel, traveling from Dover, England, to Calais, France, in 22 hours.