56157684 has 48 divisors (see below), whose sum is σ = 143410176. Its totient is φ = 16962400.

The previous prime is 56157683. The next prime is 56157701. The reversal of 56157684 is 48675165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56157683) 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, 61189 + ... + 62099.

It is an arithmetic number, because the mean of its divisors is an integer number (2987712).

Almost surely, 2^56157684 is an apocalyptic number.

It is an amenable number.

56157684 is an abundant number, since it is smaller than the sum of its proper divisors (87252492).

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

56157684 is a wasteful number, since it uses less digits than its factorization.

56157684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1394 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 56157684 is about 7493.8430728165. The cubic root of 56157684 is about 382.9449936570.

The spelling of 56157684 in words is "fifty-six million, one hundred fifty-seven thousand, six hundred eighty-four".