57156488 has 8 divisors (see below), whose sum is σ = 107168430. Its totient is φ = 28578240.

The previous prime is 57156413. The next prime is 57156493. The reversal of 57156488 is 88465175.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 57123364 + 33124 = 7558^2 + 182^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3572273 + ... + 3572288.

Almost surely, 2^57156488 is an apocalyptic number.

It is an amenable number.

57156488 is a deficient number, since it is larger than the sum of its proper divisors (50011942).

57156488 is a wasteful number, since it uses less digits than its factorization.

57156488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144567 (or 7144563 counting only the distinct ones).

The product of its digits is 268800, while the sum is 44.

The square root of 57156488 is about 7560.1910028782. The cubic root of 57156488 is about 385.2019809345.

The spelling of 57156488 in words is "fifty-seven million, one hundred fifty-six thousand, four hundred eighty-eight".