56626866 has 24 divisors (see below), whose sum is σ = 123179004. Its totient is φ = 18800640.

The previous prime is 56626841. The next prime is 56626877. The reversal of 56626866 is 66862665.

56626866 is a `hidden beast` number, since 566 + 2 + 6 + 86 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54331641 + 2295225 = 7371^2 + 1515^2 .

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 11 ways as a sum of consecutive naturals, for example, 1495 + ... + 10746.

Almost surely, 2^56626866 is an apocalyptic number.

56626866 is an abundant number, since it is smaller than the sum of its proper divisors (66552138).

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

56626866 is a wasteful number, since it uses less digits than its factorization.

56626866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12506 (or 12503 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 56626866 is about 7525.0824580200. The cubic root of 56626866 is about 384.0085040434.

The spelling of 56626866 in words is "fifty-six million, six hundred twenty-six thousand, eight hundred sixty-six".