57539808 has 120 divisors (see below), whose sum is σ = 171974880. Its totient is φ = 18869760.

The previous prime is 57539803. The next prime is 57539819. The reversal of 57539808 is 80893575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57539803) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 204628 + ... + 204908.

It is an arithmetic number, because the mean of its divisors is an integer number (1433124).

Almost surely, 2^57539808 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 57539808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85987440).

57539808 is an abundant number, since it is smaller than the sum of its proper divisors (114435072).

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

57539808 is a wasteful number, since it uses less digits than its factorization.

57539808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 57539808 is about 7585.4998516907. The cubic root of 57539808 is about 386.0611821013.

The spelling of 57539808 in words is "fifty-seven million, five hundred thirty-nine thousand, eight hundred eight".