57125977 has 2 divisors, whose sum is σ = 57125978. Its totient is φ = 57125976.

The previous prime is 57125947. The next prime is 57126007. The reversal of 57125977 is 77952175.

It is a balanced prime because it is at equal distance from previous prime (57125947) and next prime (57126007).

It can be written as a sum of positive squares in only one way, i.e., 49224256 + 7901721 = 7016^2 + 2811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57125977 is a prime.

It is not a weakly prime, because it can be changed into another prime (57125947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28562988 + 28562989.

It is an arithmetic number, because the mean of its divisors is an integer number (28562989).

Almost surely, 2^57125977 is an apocalyptic number.

It is an amenable number.

57125977 is a deficient number, since it is larger than the sum of its proper divisors (1).

57125977 is an equidigital number, since it uses as much as digits as its factorization.

57125977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 154350, while the sum is 43.

The square root of 57125977 is about 7558.1728612145. The cubic root of 57125977 is about 385.1334265151.

The spelling of 57125977 in words is "fifty-seven million, one hundred twenty-five thousand, nine hundred seventy-seven".