57125239 has 2 divisors, whose sum is σ = 57125240. Its totient is φ = 57125238.

The previous prime is 57125227. The next prime is 57125291. The reversal of 57125239 is 93252175.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57125239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57125209) 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 as a sum of consecutive naturals, namely, 28562619 + 28562620.

It is an arithmetic number, because the mean of its divisors is an integer number (28562620).

Almost surely, 2^57125239 is an apocalyptic number.

57125239 is a deficient number, since it is larger than the sum of its proper divisors (1).

57125239 is an equidigital number, since it uses as much as digits as its factorization.

57125239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 34.

The square root of 57125239 is about 7558.1240397337. The cubic root of 57125239 is about 385.1317680186.

The spelling of 57125239 in words is "fifty-seven million, one hundred twenty-five thousand, two hundred thirty-nine".