57492720 has 160 divisors (see below), whose sum is σ = 202963200. Its totient is φ = 14950656.

The previous prime is 57492713. The next prime is 57492731. The reversal of 57492720 is 2729475.

57492720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92571 + ... + 93189.

It is an arithmetic number, because the mean of its divisors is an integer number (1268520).

Almost surely, 2^57492720 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 57492720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101481600).

57492720 is an abundant number, since it is smaller than the sum of its proper divisors (145470480).

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

57492720 is a wasteful number, since it uses less digits than its factorization.

57492720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 57492720 is about 7582.3953998720. The cubic root of 57492720 is about 385.9558416379.

The spelling of 57492720 in words is "fifty-seven million, four hundred ninety-two thousand, seven hundred twenty".