Hecho general: 5351 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 5351 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 5351 is an uninteresting number.
Fecha histórica: August 25th is the day in 1537 that the Honourable Artillery Company, the oldest surviving regiment in the British Army, and the second most senior, is formed.