57455872 has 36 divisors (see below), whose sum is σ = 115853920. Its totient is φ = 28435968.

The previous prime is 57455861. The next prime is 57455887. The reversal of 57455872 is 27855475.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25279 + ... + 27457.

Almost surely, 2^57455872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57455872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57926960).

57455872 is an abundant number, since it is smaller than the sum of its proper divisors (58398048).

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

57455872 is a wasteful number, since it uses less digits than its factorization.

57455872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298 (or 2284 counting only the distinct ones).

The product of its digits is 392000, while the sum is 43.

The square root of 57455872 is about 7579.9651714239. The cubic root of 57455872 is about 385.8733689339.

The spelling of 57455872 in words is "fifty-seven million, four hundred fifty-five thousand, eight hundred seventy-two".