257262671 has 2 divisors, whose sum is σ = 257262672. Its totient is φ = 257262670.

The previous prime is 257262661. The next prime is 257262673. The reversal of 257262671 is 176262752.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 257262671 - 2¹⁴ = 257246287 is a prime.

Together with 257262673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257262673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128631335 + 128631336.

It is an arithmetic number, because the mean of its divisors is an integer number (128631336).

Almost surely, 2^257262671 is an apocalyptic number.

257262671 is a deficient number, since it is larger than the sum of its proper divisors (1).

257262671 is an equidigital number, since it uses as much as digits as its factorization.

257262671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 38.

The square root of 257262671 is about 16039.4099330368. The cubic root of 257262671 is about 636.0026493765.

The spelling of 257262671 in words is "two hundred fifty-seven million, two hundred sixty-two thousand, six hundred seventy-one".