56640626 has 16 divisors (see below), whose sum is σ = 97463040. Its totient is φ = 24183360.

The previous prime is 56640613. The next prime is 56640637. The reversal of 56640626 is 62604665.

It is a Curzon number.

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, 3671 + ... + 11258.

It is an arithmetic number, because the mean of its divisors is an integer number (6091440).

Almost surely, 2^56640626 is an apocalyptic number.

56640626 is a deficient number, since it is larger than the sum of its proper divisors (40822414).

56640626 is a wasteful number, since it uses less digits than its factorization.

56640626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15209.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 56640626 is about 7525.9966781816. The cubic root of 56640626 is about 384.0396054708.

The spelling of 56640626 in words is "fifty-six million, six hundred forty thousand, six hundred twenty-six".