57533056 has 48 divisors (see below), whose sum is σ = 133344090. Its totient is φ = 24654336.

The previous prime is 57533033. The next prime is 57533057. The reversal of 57533056 is 65033575.

It can be written as a sum of positive squares in only one way, i.e., 57153600 + 379456 = 7560^2 + 616^2 .

It is not an unprimeable number, because it can be changed into a prime (57533057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1686 + ... + 10858.

Almost surely, 2^57533056 is an apocalyptic number.

57533056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57533056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66672045).

57533056 is an abundant number, since it is smaller than the sum of its proper divisors (75811034).

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

57533056 is an equidigital number, since it uses as much as digits as its factorization.

57533056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9201 (or 9182 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 34.

The square root of 57533056 is about 7585.0547789716. The cubic root of 57533056 is about 386.0460807471.

The spelling of 57533056 in words is "fifty-seven million, five hundred thirty-three thousand, fifty-six".