57572538 has 8 divisors (see below), whose sum is σ = 115145088. Its totient is φ = 19190844.

The previous prime is 57572521. The next prime is 57572539. The reversal of 57572538 is 83527575.

It is a sphenic number, since it is the product of 3 distinct primes.

57572538 is an admirable number.

It is a super-2 number, since 2×57572538² = 6629194263522888, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57572538.

It is not an unprimeable number, because it can be changed into a prime (57572539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4797706 + ... + 4797717.

It is an arithmetic number, because the mean of its divisors is an integer number (14393136).

Almost surely, 2^57572538 is an apocalyptic number.

57572538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57572538 is a wasteful number, since it uses less digits than its factorization.

57572538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9595428.

The product of its digits is 294000, while the sum is 42.

The square root of 57572538 is about 7587.6569506008. The cubic root of 57572538 is about 386.1343684618.

The spelling of 57572538 in words is "fifty-seven million, five hundred seventy-two thousand, five hundred thirty-eight".