56657974 has 16 divisors (see below), whose sum is σ = 90788688. Its totient is φ = 26424832.

The previous prime is 56657971. The next prime is 56657977. The reversal of 56657974 is 47975665.

It is an interprime number because it is at equal distance from previous prime (56657971) and next prime (56657977).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56657971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3532 + ... + 11215.

It is an arithmetic number, because the mean of its divisors is an integer number (5674293).

Almost surely, 2^56657974 is an apocalyptic number.

56657974 is a deficient number, since it is larger than the sum of its proper divisors (34130714).

56657974 is a wasteful number, since it uses less digits than its factorization.

56657974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14879.

The product of its digits is 1587600, while the sum is 49.

The square root of 56657974 is about 7527.1491283221. The cubic root of 56657974 is about 384.0788095986.

The spelling of 56657974 in words is "fifty-six million, six hundred fifty-seven thousand, nine hundred seventy-four".