57062220 has 48 divisors (see below), whose sum is σ = 160510560. Its totient is φ = 15146496.

The previous prime is 57062197. The next prime is 57062231. The reversal of 57062220 is 2226075.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11664 + ... + 15816.

It is an arithmetic number, because the mean of its divisors is an integer number (3343970).

Almost surely, 2^57062220 is an apocalyptic number.

It is an amenable number.

57062220 is an abundant number, since it is smaller than the sum of its proper divisors (103448340).

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

57062220 is a wasteful number, since it uses less digits than its factorization.

57062220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394 (or 4392 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 57062220 is about 7553.9539315513. The cubic root of 57062220 is about 384.9900936339.

Adding to 57062220 its reverse (2226075), we get a palindrome (59288295).

The spelling of 57062220 in words is "fifty-seven million, sixty-two thousand, two hundred twenty".