56398530 has 32 divisors (see below), whose sum is σ = 141243264. Its totient is φ = 14385536.

The previous prime is 56398487. The next prime is 56398547. The reversal of 56398530 is 3589365.

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, 40179 + ... + 41558.

It is an arithmetic number, because the mean of its divisors is an integer number (4413852).

Almost surely, 2^56398530 is an apocalyptic number.

56398530 is an abundant number, since it is smaller than the sum of its proper divisors (84844734).

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

56398530 is a wasteful number, since it uses less digits than its factorization.

56398530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81770.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 56398530 is about 7509.8954719756. The cubic root of 56398530 is about 383.4916640632.

The spelling of 56398530 in words is "fifty-six million, three hundred ninety-eight thousand, five hundred thirty".