57288528 has 120 divisors (see below), whose sum is σ = 178158240. Its totient is φ = 17038080.

The previous prime is 57288523. The next prime is 57288571. The reversal of 57288528 is 82588275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57288523) 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, 93150 + ... + 93762.

It is an arithmetic number, because the mean of its divisors is an integer number (1484652).

Almost surely, 2^57288528 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 57288528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89079120).

57288528 is an abundant number, since it is smaller than the sum of its proper divisors (120869712).

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

57288528 is a wasteful number, since it uses less digits than its factorization.

57288528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 688 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The square root of 57288528 is about 7568.9185489078. The cubic root of 57288528 is about 385.4983774604.

The spelling of 57288528 in words is "fifty-seven million, two hundred eighty-eight thousand, five hundred twenty-eight".