56664630 has 64 divisors (see below), whose sum is σ = 164851200. Its totient is φ = 13736160.

The previous prime is 56664623. The next prime is 56664659. The reversal of 56664630 is 3646665.

It is a congruent number.

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, 6570 + ... + 12509.

It is an arithmetic number, because the mean of its divisors is an integer number (2575800).

Almost surely, 2^56664630 is an apocalyptic number.

56664630 is an abundant number, since it is smaller than the sum of its proper divisors (108186570).

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

56664630 is a wasteful number, since it uses less digits than its factorization.

56664630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19106 (or 19100 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 56664630 is about 7527.5912482015. The cubic root of 56664630 is about 384.0938491318.

It can be divided in two parts, 5666 and 4630, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 56664630 in words is "fifty-six million, six hundred sixty-four thousand, six hundred thirty".