57489872 has 80 divisors (see below), whose sum is σ = 128991744. Its totient is φ = 24576000.

The previous prime is 57489851. The next prime is 57489893. The reversal of 57489872 is 27898475.

It is an interprime number because it is at equal distance from previous prime (57489851) and next prime (57489893).

It is a self number, because there is not a number n which added to its sum of digits gives 57489872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223568 + ... + 223824.

Almost surely, 2^57489872 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 57489872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64495872).

57489872 is an abundant number, since it is smaller than the sum of its proper divisors (71501872).

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

57489872 is a wasteful number, since it uses less digits than its factorization.

57489872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 342 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The square root of 57489872 is about 7582.2075940982. The cubic root of 57489872 is about 385.9494685389.

The spelling of 57489872 in words is "fifty-seven million, four hundred eighty-nine thousand, eight hundred seventy-two".