259863013 has 2 divisors, whose sum is σ = 259863014. Its totient is φ = 259863012.

The previous prime is 259863007. The next prime is 259863031. The reversal of 259863013 is 310368952.

Together with next prime (259863031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 259145604 + 717409 = 16098^2 + 847^2 .

It is a cyclic number.

It is not a de Polignac number, because 259863013 - 2²⁵ = 226308581 is a prime.

It is equal to p_14188816 and since 259863013 and 14188816 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259863313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129931506 + 129931507.

It is an arithmetic number, because the mean of its divisors is an integer number (129931507).

Almost surely, 2^259863013 is an apocalyptic number.

It is an amenable number.

259863013 is a deficient number, since it is larger than the sum of its proper divisors (1).

259863013 is an equidigital number, since it uses as much as digits as its factorization.

259863013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 259863013 is about 16120.2671503918. The cubic root of 259863013 is about 638.1383178715.

The spelling of 259863013 in words is "two hundred fifty-nine million, eight hundred sixty-three thousand, thirteen".