259405513 has 2 divisors, whose sum is σ = 259405514. Its totient is φ = 259405512.

The previous prime is 259405511. The next prime is 259405561. The reversal of 259405513 is 315504952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241740304 + 17665209 = 15548^2 + 4203^2 .

It is a cyclic number.

It is not a de Polignac number, because 259405513 - 2¹ = 259405511 is a prime.

Together with 259405511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (259405511) 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, 129702756 + 129702757.

It is an arithmetic number, because the mean of its divisors is an integer number (129702757).

Almost surely, 2^259405513 is an apocalyptic number.

It is an amenable number.

259405513 is a deficient number, since it is larger than the sum of its proper divisors (1).

259405513 is an equidigital number, since it uses as much as digits as its factorization.

259405513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 259405513 is about 16106.0706877873. The cubic root of 259405513 is about 637.7636079118.

The spelling of 259405513 in words is "two hundred fifty-nine million, four hundred five thousand, five hundred thirteen".