56000644 has 24 divisors (see below), whose sum is σ = 112723520. Its totient is φ = 23845536.

The previous prime is 56000639. The next prime is 56000671. The reversal of 56000644 is 44600065.

It is a happy 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, 1974 + ... + 10765.

Almost surely, 2^56000644 is an apocalyptic number.

It is an amenable number.

56000644 is an abundant number, since it is smaller than the sum of its proper divisors (56722876).

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

56000644 is a wasteful number, since it uses less digits than its factorization.

56000644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12907 (or 12905 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 56000644 is about 7483.3578024841. The cubic root of 56000644 is about 382.5877031294.

It can be divided in two parts, 56000 and 644, that added together give a square (56644 = 238²).

The spelling of 56000644 in words is "fifty-six million, six hundred forty-four", and thus it is an aban number.