57124704 has 144 divisors (see below), whose sum is σ = 185939712. Its totient is φ = 15035904.

The previous prime is 57124703. The next prime is 57124721. The reversal of 57124704 is 40742175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57124703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113317 + ... + 113819.

It is an arithmetic number, because the mean of its divisors is an integer number (1291248).

Almost surely, 2^57124704 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 57124704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92969856).

57124704 is an abundant number, since it is smaller than the sum of its proper divisors (128815008).

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

57124704 is a wasteful number, since it uses less digits than its factorization.

57124704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 57124704 is about 7558.0886472706. The cubic root of 57124704 is about 385.1305657121.

Adding to 57124704 its reverse (40742175), we get a palindrome (97866879).

The spelling of 57124704 in words is "fifty-seven million, one hundred twenty-four thousand, seven hundred four".