Hecho matemático: 4225 is the smallest number that can be written as the sum of two squares in 12 ways.
Trivia: 4225 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: July 26th is the day in 1775 that the office that would later become the United States Post Office Department is established by the Second Continental Congress.