56510664 has 32 divisors (see below), whose sum is σ = 161459520. Its totient is φ = 16145856.

The previous prime is 56510651. The next prime is 56510677. The reversal of 56510664 is 46601565.

It is an interprime number because it is at equal distance from previous prime (56510651) and next prime (56510677).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168019 + ... + 168354.

It is an arithmetic number, because the mean of its divisors is an integer number (5045610).

Almost surely, 2^56510664 is an apocalyptic number.

It is an amenable number.

56510664 is an abundant number, since it is smaller than the sum of its proper divisors (104948856).

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

56510664 is a wasteful number, since it uses less digits than its factorization.

56510664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336389 (or 336385 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 56510664 is about 7517.3575144462. The cubic root of 56510664 is about 383.7456540514.

Subtracting from 56510664 its reverse (46601565), we obtain a palindrome (9909099).

The spelling of 56510664 in words is "fifty-six million, five hundred ten thousand, six hundred sixty-four".