57311552 has 28 divisors (see below), whose sum is σ = 114130836. Its totient is φ = 28554240.

The previous prime is 57311549. The next prime is 57311593. The reversal of 57311552 is 25511375.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11397376 + 45914176 = 3376^2 + 6776^2 .

It is a super-2 number, since 2×57311552² = 6569227985297408, which contains 22 as substring.

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, 18602 + ... + 21462.

Almost surely, 2^57311552 is an apocalyptic number.

It is an amenable number.

57311552 is a deficient number, since it is larger than the sum of its proper divisors (56819284).

57311552 is a wasteful number, since it uses less digits than its factorization.

57311552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186 (or 3176 counting only the distinct ones).

The product of its digits is 5250, while the sum is 29.

The square root of 57311552 is about 7570.4393531683. The cubic root of 57311552 is about 385.5500138943.

The spelling of 57311552 in words is "fifty-seven million, three hundred eleven thousand, five hundred fifty-two".