56831646 has 32 divisors (see below), whose sum is σ = 120676608. Its totient is φ = 17781120.

The previous prime is 56831633. The next prime is 56831651. The reversal of 56831646 is 64613865.

It is a congruent number.

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, 63921 + ... + 64803.

It is an arithmetic number, because the mean of its divisors is an integer number (3771144).

Almost surely, 2^56831646 is an apocalyptic number.

56831646 is an abundant number, since it is smaller than the sum of its proper divisors (63844962).

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

56831646 is a wasteful number, since it uses less digits than its factorization.

56831646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536.

The product of its digits is 103680, while the sum is 39.

The square root of 56831646 is about 7538.6766743242. The cubic root of 56831646 is about 384.4708444182.

The spelling of 56831646 in words is "fifty-six million, eight hundred thirty-one thousand, six hundred forty-six".