57270528 has 216 divisors, whose sum is σ = 195144768. Its totient is φ = 15814656.

The previous prime is 57270527. The next prime is 57270559. The reversal of 57270528 is 82507275.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 57270492 and 57270501.

It is not an unprimeable number, because it can be changed into a prime (57270527) 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, 854751 + ... + 854817.

It is an arithmetic number, because the mean of its divisors is an integer number (903448).

Almost surely, 2^57270528 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 57270528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97572384).

57270528 is an abundant number, since it is smaller than the sum of its proper divisors (137874240).

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

57270528 is a wasteful number, since it uses less digits than its factorization.

57270528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 57270528 is about 7567.7293820538. The cubic root of 57270528 is about 385.4579988255.

The spelling of 57270528 in words is "fifty-seven million, two hundred seventy thousand, five hundred twenty-eight".