56644442 has 16 divisors (see below), whose sum is σ = 90139392. Its totient is φ = 26604480.

The previous prime is 56644433. The next prime is 56644451. The reversal of 56644442 is 24444665.

It is an interprime number because it is at equal distance from previous prime (56644433) and next prime (56644451).

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, 20567 + ... + 23157.

It is an arithmetic number, because the mean of its divisors is an integer number (5633712).

Almost surely, 2^56644442 is an apocalyptic number.

56644442 is a deficient number, since it is larger than the sum of its proper divisors (33494950).

56644442 is a wasteful number, since it uses less digits than its factorization.

56644442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253.

The product of its digits is 92160, while the sum is 35.

The square root of 56644442 is about 7526.2501951503. The cubic root of 56644442 is about 384.0482298001.

The spelling of 56644442 in words is "fifty-six million, six hundred forty-four thousand, four hundred forty-two".