57544860 has 48 divisors (see below), whose sum is σ = 162118656. Its totient is φ = 15250752.

The previous prime is 57544859. The next prime is 57544867. The reversal of 57544860 is 6844575.

It is a super-2 number, since 2×57544860² = 6622821824839200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57544867) 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, 7149 + ... + 12891.

It is an arithmetic number, because the mean of its divisors is an integer number (3377472).

Almost surely, 2^57544860 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 57544860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81059328).

57544860 is an abundant number, since it is smaller than the sum of its proper divisors (104573796).

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

57544860 is a wasteful number, since it uses less digits than its factorization.

57544860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922 (or 5920 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 57544860 is about 7585.8328481453. The cubic root of 57544860 is about 386.0724805054.

The spelling of 57544860 in words is "fifty-seven million, five hundred forty-four thousand, eight hundred sixty".