57775628 has 12 divisors (see below), whose sum is σ = 101835720. Its totient is φ = 28679712.

The previous prime is 57775607. The next prime is 57775633. The reversal of 57775628 is 82657775.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51401 + ... + 52512.

It is an arithmetic number, because the mean of its divisors is an integer number (8486310).

Almost surely, 2^57775628 is an apocalyptic number.

It is an amenable number.

57775628 is a deficient number, since it is larger than the sum of its proper divisors (44060092).

57775628 is a wasteful number, since it uses less digits than its factorization.

57775628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104056 (or 104054 counting only the distinct ones).

The product of its digits is 823200, while the sum is 47.

The square root of 57775628 is about 7601.0280883575. The cubic root of 57775628 is about 386.5878717101.

The spelling of 57775628 in words is "fifty-seven million, seven hundred seventy-five thousand, six hundred twenty-eight".