56710665 has 32 divisors (see below), whose sum is σ = 109987200. Its totient is φ = 27495360.

The previous prime is 56710651. The next prime is 56710673. The reversal of 56710665 is 56601765.

It is a happy number.

It is not a de Polignac number, because 56710665 - 2¹⁵ = 56677897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17610 + ... + 20579.

It is an arithmetic number, because the mean of its divisors is an integer number (3437100).

Almost surely, 2^56710665 is an apocalyptic number.

56710665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56710665 is a deficient number, since it is larger than the sum of its proper divisors (53276535).

56710665 is a wasteful number, since it uses less digits than its factorization.

56710665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38214 (or 38208 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 56710665 is about 7530.6483784599. The cubic root of 56710665 is about 384.1978350705.

Subtracting from 56710665 its reverse (56601765), we obtain a square (108900 = 330²).

It can be divided in two parts, 56710 and 665, that added together give a palindrome (57375).

The spelling of 56710665 in words is "fifty-six million, seven hundred ten thousand, six hundred sixty-five".