56691008 has 28 divisors (see below), whose sum is σ = 122724672. Its totient is φ = 25768320.

The previous prime is 56691007. The next prime is 56691013. The reversal of 56691008 is 80019665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56691001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39560 + ... + 40967.

It is an arithmetic number, because the mean of its divisors is an integer number (4383024).

Almost surely, 2^56691008 is an apocalyptic number.

It is an amenable number.

56691008 is an abundant number, since it is smaller than the sum of its proper divisors (66033664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56691008 is a wasteful number, since it uses less digits than its factorization.

56691008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80550 (or 80540 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 56691008 is about 7529.3431320401. The cubic root of 56691008 is about 384.1534398373.

The spelling of 56691008 in words is "fifty-six million, six hundred ninety-one thousand, eight".