56637942 has 8 divisors (see below), whose sum is σ = 113275896. Its totient is φ = 18879312.

The previous prime is 56637901. The next prime is 56637943. The reversal of 56637942 is 24973665.

It is a sphenic number, since it is the product of 3 distinct primes.

56637942 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 56637894 and 56637903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56637943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4719823 + ... + 4719834.

It is an arithmetic number, because the mean of its divisors is an integer number (14159487).

Almost surely, 2^56637942 is an apocalyptic number.

56637942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56637942 is a wasteful number, since it uses less digits than its factorization.

56637942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9439662.

The product of its digits is 272160, while the sum is 42.

The square root of 56637942 is about 7525.8183608163. The cubic root of 56637942 is about 384.0335392797.

The spelling of 56637942 in words is "fifty-six million, six hundred thirty-seven thousand, nine hundred forty-two".