56687763 has 16 divisors (see below), whose sum is σ = 82627200. Its totient is φ = 34284480.

The previous prime is 56687759. The next prime is 56687783. The reversal of 56687763 is 36778665.

It is not a de Polignac number, because 56687763 - 2² = 56687759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56687753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17268 + ... + 20286.

It is an arithmetic number, because the mean of its divisors is an integer number (5164200).

Almost surely, 2^56687763 is an apocalyptic number.

56687763 is a deficient number, since it is larger than the sum of its proper divisors (25939437).

56687763 is a wasteful number, since it uses less digits than its factorization.

56687763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602.

The product of its digits is 1270080, while the sum is 48.

The square root of 56687763 is about 7529.1276387109. The cubic root of 56687763 is about 384.1461100347.

It can be divided in two parts, 5668 and 7763, that added together give a palindrome (13431).

The spelling of 56687763 in words is "fifty-six million, six hundred eighty-seven thousand, seven hundred sixty-three".