57312554 has 16 divisors (see below), whose sum is σ = 92752128. Its totient is φ = 26403312.

The previous prime is 57312553. The next prime is 57312581. The reversal of 57312554 is 45521375.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57312554.

It is not an unprimeable number, because it can be changed into a prime (57312553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15119 + ... + 18525.

It is an arithmetic number, because the mean of its divisors is an integer number (5797008).

Almost surely, 2^57312554 is an apocalyptic number.

57312554 is a deficient number, since it is larger than the sum of its proper divisors (35439574).

57312554 is a wasteful number, since it uses less digits than its factorization.

57312554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069.

The product of its digits is 21000, while the sum is 32.

The square root of 57312554 is about 7570.5055313367. The cubic root of 57312554 is about 385.5522607878.

The spelling of 57312554 in words is "fifty-seven million, three hundred twelve thousand, five hundred fifty-four".