57081028 has 12 divisors (see below), whose sum is σ = 100039212. Its totient is φ = 28498400.

The previous prime is 57080999. The next prime is 57081029. The reversal of 57081028 is 82018075.

It can be written as a sum of positive squares in 2 ways, for example, as 41964484 + 15116544 = 6478^2 + 3888^2 .

It is not an unprimeable number, because it can be changed into a prime (57081029) 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, 7375 + ... + 12982.

It is an arithmetic number, because the mean of its divisors is an integer number (8336601).

Almost surely, 2^57081028 is an apocalyptic number.

It is an amenable number.

57081028 is a deficient number, since it is larger than the sum of its proper divisors (42958184).

57081028 is a wasteful number, since it uses less digits than its factorization.

57081028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21062 (or 21060 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 57081028 is about 7555.1987399406. The cubic root of 57081028 is about 385.0323872231.

The spelling of 57081028 in words is "fifty-seven million, eighty-one thousand, twenty-eight".