57145456 has 20 divisors (see below), whose sum is σ = 111702672. Its totient is φ = 28318976.

The previous prime is 57145447. The next prime is 57145463. The reversal of 57145456 is 65454175.

It is a happy number.

It is a congruent 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, 13996 + ... + 17611.

Almost surely, 2^57145456 is an apocalyptic number.

It is an amenable number.

57145456 is a deficient number, since it is larger than the sum of its proper divisors (54557216).

57145456 is a wasteful number, since it uses less digits than its factorization.

57145456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31728 (or 31722 counting only the distinct ones).

The product of its digits is 84000, while the sum is 37.

The square root of 57145456 is about 7559.4613564724. The cubic root of 57145456 is about 385.1771962201.

The spelling of 57145456 in words is "fifty-seven million, one hundred forty-five thousand, four hundred fifty-six".