257083199 has 2 divisors, whose sum is σ = 257083200. Its totient is φ = 257083198.

The previous prime is 257083171. The next prime is 257083207. The reversal of 257083199 is 991380752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 257083199 - 2²⁴ = 240305983 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257083139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128541599 + 128541600.

It is an arithmetic number, because the mean of its divisors is an integer number (128541600).

Almost surely, 2^257083199 is an apocalyptic number.

257083199 is a deficient number, since it is larger than the sum of its proper divisors (1).

257083199 is an equidigital number, since it uses as much as digits as its factorization.

257083199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 257083199 is about 16033.8142374171. The cubic root of 257083199 is about 635.8547185728.

The spelling of 257083199 in words is "two hundred fifty-seven million, eighty-three thousand, one hundred ninety-nine".