259871263 has 2 divisors, whose sum is σ = 259871264. Its totient is φ = 259871262.

The previous prime is 259871237. The next prime is 259871279. The reversal of 259871263 is 362178952.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259871263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259871363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129935631 + 129935632.

It is an arithmetic number, because the mean of its divisors is an integer number (129935632).

Almost surely, 2^259871263 is an apocalyptic number.

259871263 is a deficient number, since it is larger than the sum of its proper divisors (1).

259871263 is an equidigital number, since it uses as much as digits as its factorization.

259871263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 259871263 is about 16120.5230374203. The cubic root of 259871263 is about 638.1450708979.

The spelling of 259871263 in words is "two hundred fifty-nine million, eight hundred seventy-one thousand, two hundred sixty-three".