Fatto matematico: 7551 is a value of n for which f(n) + f(n+1) divides s(n) + s(n+1).
Trivia: 7551 is an uninteresting number.
Data storica: September 2nd is the day in 1946 that the Interim Government of India is formed with Jawaharlal Nehru as Vice President with the powers of a Prime Minister.