57328563 has 16 divisors (see below), whose sum is σ = 80572320. Its totient is φ = 36201984.

The previous prime is 57328561. The next prime is 57328597. The reversal of 57328563 is 36582375.

It is not a de Polignac number, because 57328563 - 2¹ = 57328561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57328561) 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, 1606 + ... + 10827.

It is an arithmetic number, because the mean of its divisors is an integer number (5035770).

Almost surely, 2^57328563 is an apocalyptic number.

57328563 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

57328563 is a deficient number, since it is larger than the sum of its proper divisors (23243757).

57328563 is a wasteful number, since it uses less digits than its factorization.

57328563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12518.

The product of its digits is 151200, while the sum is 39.

The square root of 57328563 is about 7571.5627845247. The cubic root of 57328563 is about 385.5881559574.

The spelling of 57328563 in words is "fifty-seven million, three hundred twenty-eight thousand, five hundred sixty-three".