257152559 has 2 divisors, whose sum is σ = 257152560. Its totient is φ = 257152558.

The previous prime is 257152537. The next prime is 257152561. The reversal of 257152559 is 955251752.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 257152559 - 2⁸ = 257152303 is a prime.

It is a super-2 number, since 2×257152559² = 132254877200496962, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 257152561, 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 (257152579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128576279 + 128576280.

It is an arithmetic number, because the mean of its divisors is an integer number (128576280).

Almost surely, 2^257152559 is an apocalyptic number.

257152559 is a deficient number, since it is larger than the sum of its proper divisors (1).

257152559 is an equidigital number, since it uses as much as digits as its factorization.

257152559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157500, while the sum is 41.

The square root of 257152559 is about 16035.9770204375. The cubic root of 257152559 is about 635.9118971020.

The spelling of 257152559 in words is "two hundred fifty-seven million, one hundred fifty-two thousand, five hundred fifty-nine".