57172532 has 24 divisors (see below), whose sum is σ = 103670280. Its totient is φ = 27568640.

The previous prime is 57172483. The next prime is 57172559. The reversal of 57172532 is 23527175.

It can be written as a sum of positive squares in 4 ways, for example, as 712336 + 56460196 = 844^2 + 7514^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12638 + ... + 16554.

It is an arithmetic number, because the mean of its divisors is an integer number (4319595).

Almost surely, 2^57172532 is an apocalyptic number.

It is an amenable number.

57172532 is a deficient number, since it is larger than the sum of its proper divisors (46497748).

57172532 is a wasteful number, since it uses less digits than its factorization.

57172532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051 (or 4049 counting only the distinct ones).

The product of its digits is 14700, while the sum is 32.

The square root of 57172532 is about 7561.2520127291. The cubic root of 57172532 is about 385.2380200184.

The spelling of 57172532 in words is "fifty-seven million, one hundred seventy-two thousand, five hundred thirty-two".