57256077 has 4 divisors (see below), whose sum is σ = 76341440. Its totient is φ = 38170716.

The previous prime is 57256027. The next prime is 57256097. The reversal of 57256077 is 77065275.

57256077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 57256077 - 2⁶ = 57256013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57256007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9542677 + ... + 9542682.

It is an arithmetic number, because the mean of its divisors is an integer number (19085360).

Almost surely, 2^57256077 is an apocalyptic number.

It is an amenable number.

57256077 is a deficient number, since it is larger than the sum of its proper divisors (19085363).

57256077 is a wasteful number, since it uses less digits than its factorization.

57256077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19085362.

The product of its (nonzero) digits is 102900, while the sum is 39.

The square root of 57256077 is about 7566.7745440181. The cubic root of 57256077 is about 385.4255753883.

The spelling of 57256077 in words is "fifty-seven million, two hundred fifty-six thousand, seventy-seven".