57058220 has 24 divisors (see below), whose sum is σ = 120887424. Its totient is φ = 22620416.

The previous prime is 57058207. The next prime is 57058223. The reversal of 57058220 is 2285075.

It is not an unprimeable number, because it can be changed into a prime (57058223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10364 + ... + 14883.

It is an arithmetic number, because the mean of its divisors is an integer number (5036976).

Almost surely, 2^57058220 is an apocalyptic number.

It is an amenable number.

57058220 is an abundant number, since it is smaller than the sum of its proper divisors (63829204).

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

57058220 is a wasteful number, since it uses less digits than its factorization.

57058220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25369 (or 25367 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 57058220 is about 7553.6891649048. The cubic root of 57058220 is about 384.9810976271.

The spelling of 57058220 in words is "fifty-seven million, fifty-eight thousand, two hundred twenty".