56631766 has 8 divisors (see below), whose sum is σ = 84980520. Its totient is φ = 28304928.

The previous prime is 56631739. The next prime is 56631779. The reversal of 56631766 is 66713665.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 4965 + ... + 11743.

It is an arithmetic number, because the mean of its divisors is an integer number (10622565).

Almost surely, 2^56631766 is an apocalyptic number.

56631766 is a deficient number, since it is larger than the sum of its proper divisors (28348754).

56631766 is a wasteful number, since it uses less digits than its factorization.

56631766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10958.

The product of its digits is 136080, while the sum is 40.

The square root of 56631766 is about 7525.4080288048. The cubic root of 56631766 is about 384.0195799840.

The spelling of 56631766 in words is "fifty-six million, six hundred thirty-one thousand, seven hundred sixty-six".