57520344 has 64 divisors (see below), whose sum is σ = 166233600. Its totient is φ = 16245504.

The previous prime is 57520343. The next prime is 57520361. The reversal of 57520344 is 44302575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57520343) 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, 13029 + ... + 16875.

It is an arithmetic number, because the mean of its divisors is an integer number (2597400).

Almost surely, 2^57520344 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 57520344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83116800).

57520344 is an abundant number, since it is smaller than the sum of its proper divisors (108713256).

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

57520344 is a wasteful number, since it uses less digits than its factorization.

57520344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952 (or 3948 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 57520344 is about 7584.2167690540. The cubic root of 57520344 is about 386.0176461995.

The spelling of 57520344 in words is "fifty-seven million, five hundred twenty thousand, three hundred forty-four".