259187263 has 2 divisors, whose sum is σ = 259187264. Its totient is φ = 259187262.

The previous prime is 259187251. The next prime is 259187267. The reversal of 259187263 is 362781952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259187263 - 2¹⁷ = 259056191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259187267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129593631 + 129593632.

It is an arithmetic number, because the mean of its divisors is an integer number (129593632).

Almost surely, 2^259187263 is an apocalyptic number.

259187263 is a deficient number, since it is larger than the sum of its proper divisors (1).

259187263 is an equidigital number, since it uses as much as digits as its factorization.

259187263 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 259187263 is about 16099.2938665023. The cubic root of 259187263 is about 637.5846976022.

The spelling of 259187263 in words is "two hundred fifty-nine million, one hundred eighty-seven thousand, two hundred sixty-three".