259696529 has 2 divisors, whose sum is σ = 259696530. Its totient is φ = 259696528.

The previous prime is 259696511. The next prime is 259696531. The reversal of 259696529 is 925696952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206698129 + 52998400 = 14377^2 + 7280^2 .

It is a cyclic number.

It is not a de Polignac number, because 259696529 - 2⁸ = 259696273 is a prime.

It is a Sophie Germain prime.

Together with 259696531, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (259696559) 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, 129848264 + 129848265.

It is an arithmetic number, because the mean of its divisors is an integer number (129848265).

Almost surely, 2^259696529 is an apocalyptic number.

It is an amenable number.

259696529 is a deficient number, since it is larger than the sum of its proper divisors (1).

259696529 is an equidigital number, since it uses as much as digits as its factorization.

259696529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2624400, while the sum is 53.

The square root of 259696529 is about 16115.1025128604. The cubic root of 259696529 is about 638.0020120611.

The spelling of 259696529 in words is "two hundred fifty-nine million, six hundred ninety-six thousand, five hundred twenty-nine".