57573257 has 4 divisors (see below), whose sum is σ = 65798016. Its totient is φ = 49348500.

The previous prime is 57573239. The next prime is 57573277. The reversal of 57573257 is 75237575.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57573257 - 2⁶ = 57573193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57573277) 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, 4112369 + ... + 4112382.

It is an arithmetic number, because the mean of its divisors is an integer number (16449504).

Almost surely, 2^57573257 is an apocalyptic number.

It is an amenable number.

57573257 is a deficient number, since it is larger than the sum of its proper divisors (8224759).

57573257 is an equidigital number, since it uses as much as digits as its factorization.

57573257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8224758.

The product of its digits is 257250, while the sum is 41.

The square root of 57573257 is about 7587.7043300329. The cubic root of 57573257 is about 386.1359758801.

The spelling of 57573257 in words is "fifty-seven million, five hundred seventy-three thousand, two hundred fifty-seven".