57058239 has 32 divisors (see below), whose sum is σ = 96076800. Its totient is φ = 29348352.

The previous prime is 57058223. The next prime is 57058247. The reversal of 57058239 is 93285075.

It is not a de Polignac number, because 57058239 - 2⁴ = 57058223 is a prime.

It is a super-2 number, since 2×57058239² = 6511285275562242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57058197 and 57058206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57058279) 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 31 ways as a sum of consecutive naturals, for example, 4737 + ... + 11685.

It is an arithmetic number, because the mean of its divisors is an integer number (3002400).

Almost surely, 2^57058239 is an apocalyptic number.

57058239 is a deficient number, since it is larger than the sum of its proper divisors (39018561).

57058239 is a wasteful number, since it uses less digits than its factorization.

57058239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6999.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 57058239 is about 7553.6904225683. The cubic root of 57058239 is about 384.9811403591.

The spelling of 57058239 in words is "fifty-seven million, fifty-eight thousand, two hundred thirty-nine".