57121010 has 32 divisors (see below), whose sum is σ = 108140400. Its totient is φ = 21692160.

The previous prime is 57120989. The next prime is 57121021. The reversal of 57121010 is 1012175.

It can be written as a sum of positive squares in 8 ways, for example, as 5726449 + 51394561 = 2393^2 + 7169^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57121010.

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, 16076 + ... + 19304.

Almost surely, 2^57121010 is an apocalyptic number.

57121010 is a deficient number, since it is larger than the sum of its proper divisors (51019390).

57121010 is a wasteful number, since it uses less digits than its factorization.

57121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 57121010 is about 7557.8442693668. The cubic root of 57121010 is about 385.1222639741.

Adding to 57121010 its reverse (1012175), we get a palindrome (58133185).

The spelling of 57121010 in words is "fifty-seven million, one hundred twenty-one thousand, ten".