257676113 has 2 divisors, whose sum is σ = 257676114. Its totient is φ = 257676112.

The previous prime is 257676079. The next prime is 257676121. The reversal of 257676113 is 311676752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 257666704 + 9409 = 16052^2 + 97^2 .

It is a cyclic number.

It is not a de Polignac number, because 257676113 - 2²⁶ = 190567249 is a prime.

It is not a weakly prime, because it can be changed into another prime (257676143) 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, 128838056 + 128838057.

It is an arithmetic number, because the mean of its divisors is an integer number (128838057).

Almost surely, 2^257676113 is an apocalyptic number.

It is an amenable number.

257676113 is a deficient number, since it is larger than the sum of its proper divisors (1).

257676113 is an equidigital number, since it uses as much as digits as its factorization.

257676113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 38.

The square root of 257676113 is about 16052.2930760686. The cubic root of 257676113 is about 636.3431696590.

The spelling of 257676113 in words is "two hundred fifty-seven million, six hundred seventy-six thousand, one hundred thirteen".