57061888 has 40 divisors (see below), whose sum is σ = 122796828. Its totient is φ = 26333184.

The previous prime is 57061859. The next prime is 57061889. The reversal of 57061888 is 88816075.

It can be written as a sum of positive squares in 2 ways, for example, as 52533504 + 4528384 = 7248^2 + 2128^2 .

It is not an unprimeable number, because it can be changed into a prime (57061889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2370 + ... + 10942.

Almost surely, 2^57061888 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 57061888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61398414).

57061888 is an abundant number, since it is smaller than the sum of its proper divisors (65734940).

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

57061888 is an equidigital number, since it uses as much as digits as its factorization.

57061888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8604 (or 8588 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 57061888 is about 7553.9319562728. The cubic root of 57061888 is about 384.9893469813.

The spelling of 57061888 in words is "fifty-seven million, sixty-one thousand, eight hundred eighty-eight".