56857782 has 32 divisors (see below), whose sum is σ = 120130560. Its totient is φ = 17912160.

The previous prime is 56857763. The next prime is 56857783. The reversal of 56857782 is 28775865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56857783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4444 + ... + 11552.

It is an arithmetic number, because the mean of its divisors is an integer number (3754080).

Almost surely, 2^56857782 is an apocalyptic number.

56857782 is an abundant number, since it is smaller than the sum of its proper divisors (63272778).

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

56857782 is a wasteful number, since it uses less digits than its factorization.

56857782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188.

The product of its digits is 940800, while the sum is 48.

The square root of 56857782 is about 7540.4099358059. The cubic root of 56857782 is about 384.5297727953.

The spelling of 56857782 in words is "fifty-six million, eight hundred fifty-seven thousand, seven hundred eighty-two".