57257377 has 4 divisors (see below), whose sum is σ = 60625476. Its totient is φ = 53889280.

The previous prime is 57257363. The next prime is 57257423. The reversal of 57257377 is 77375275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48986001 + 8271376 = 6999^2 + 2876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57257377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57257677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1684024 + ... + 1684057.

It is an arithmetic number, because the mean of its divisors is an integer number (15156369).

Almost surely, 2^57257377 is an apocalyptic number.

It is an amenable number.

57257377 is a deficient number, since it is larger than the sum of its proper divisors (3368099).

57257377 is a wasteful number, since it uses less digits than its factorization.

57257377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368098.

The product of its digits is 360150, while the sum is 43.

The square root of 57257377 is about 7566.8604453895. The cubic root of 57257377 is about 385.4284923972.

The spelling of 57257377 in words is "fifty-seven million, two hundred fifty-seven thousand, three hundred seventy-seven".