56157330 has 32 divisors (see below), whose sum is σ = 135647424. Its totient is φ = 14878656.

The previous prime is 56157317. The next prime is 56157359. The reversal of 56157330 is 3375165.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1252 + ... + 10671.

It is an arithmetic number, because the mean of its divisors is an integer number (4238982).

Almost surely, 2^56157330 is an apocalyptic number.

56157330 is an abundant number, since it is smaller than the sum of its proper divisors (79490094).

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

56157330 is a wasteful number, since it uses less digits than its factorization.

56157330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12090.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 56157330 is about 7493.8194533896. The cubic root of 56157330 is about 382.9441890012.

The spelling of 56157330 in words is "fifty-six million, one hundred fifty-seven thousand, three hundred thirty".