General fact: 47057 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 47057 is an uninteresting number.
Trivia: 47057 is a boring number.
Historical date: November 1st is the day in 1963 that the Arecibo Observatory in Arecibo, Puerto Rico, with the largest radio telescope ever constructed, officially opens.