257577113 has 2 divisors, whose sum is σ = 257577114. Its totient is φ = 257577112.

The previous prime is 257577097. The next prime is 257577143. The reversal of 257577113 is 311775752.

257577113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257538304 + 38809 = 16048^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 257577113 - 2⁴ = 257577097 is a prime.

It is not a weakly prime, because it can be changed into another prime (257577143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128788556 + 128788557.

It is an arithmetic number, because the mean of its divisors is an integer number (128788557).

Almost surely, 2^257577113 is an apocalyptic number.

It is an amenable number.

257577113 is a deficient number, since it is larger than the sum of its proper divisors (1).

257577113 is an equidigital number, since it uses as much as digits as its factorization.

257577113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51450, while the sum is 38.

The square root of 257577113 is about 16049.2091082396. The cubic root of 257577113 is about 636.2616641820.

The spelling of 257577113 in words is "two hundred fifty-seven million, five hundred seventy-seven thousand, one hundred thirteen".