56707992 has 128 divisors (see below), whose sum is σ = 177984000. Its totient is φ = 16571520.

The previous prime is 56707943. The next prime is 56708009. The reversal of 56707992 is 29970765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68493 + ... + 69315.

It is an arithmetic number, because the mean of its divisors is an integer number (1390500).

Almost surely, 2^56707992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56707992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88992000).

56707992 is an abundant number, since it is smaller than the sum of its proper divisors (121276008).

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

56707992 is a wasteful number, since it uses less digits than its factorization.

56707992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 56707992 is about 7530.4709016103. The cubic root of 56707992 is about 384.1917987165.

The spelling of 56707992 in words is "fifty-six million, seven hundred seven thousand, nine hundred ninety-two".