56975994 has 32 divisors (see below), whose sum is σ = 126866880. Its totient is φ = 18954000.

The previous prime is 56975987. The next prime is 56976001. The reversal of 56975994 is 49957965.

56975994 is a `hidden beast` number, since 569 + 75 + 9 + 9 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (56975987) and next prime (56976001).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 56975994.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43144 + ... + 44444.

It is an arithmetic number, because the mean of its divisors is an integer number (3964590).

Almost surely, 2^56975994 is an apocalyptic number.

56975994 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

56975994 is an abundant number, since it is smaller than the sum of its proper divisors (69890886).

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

56975994 is a wasteful number, since it uses less digits than its factorization.

56975994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123 (or 2117 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 54.

The square root of 56975994 is about 7548.2444316543. The cubic root of 56975994 is about 384.7960779867.

The spelling of 56975994 in words is "fifty-six million, nine hundred seventy-five thousand, nine hundred ninety-four".