57055104 has 80 divisors (see below), whose sum is σ = 169825920. Its totient is φ = 19014912.

The previous prime is 57055057. The next prime is 57055129. The reversal of 57055104 is 40155075.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7617 + ... + 13119.

It is an arithmetic number, because the mean of its divisors is an integer number (2122824).

Almost surely, 2^57055104 is an apocalyptic number.

57055104 is a gapful number since it is divisible by the number (54) 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 57055104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84912960).

57055104 is an abundant number, since it is smaller than the sum of its proper divisors (112770816).

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

57055104 is an equidigital number, since it uses as much as digits as its factorization.

57055104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529 (or 5508 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 57055104 is about 7553.4829052564. The cubic root of 57055104 is about 384.9740894465.

The spelling of 57055104 in words is "fifty-seven million, fifty-five thousand, one hundred four".