259561199 has 2 divisors, whose sum is σ = 259561200. Its totient is φ = 259561198.

The previous prime is 259561189. The next prime is 259561207. The reversal of 259561199 is 991165952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259561199 - 2²⁰ = 258512623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259561139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129780599 + 129780600.

It is an arithmetic number, because the mean of its divisors is an integer number (129780600).

Almost surely, 2^259561199 is an apocalyptic number.

259561199 is a deficient number, since it is larger than the sum of its proper divisors (1).

259561199 is an equidigital number, since it uses as much as digits as its factorization.

259561199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 218700, while the sum is 47.

The square root of 259561199 is about 16110.9031093853. The cubic root of 259561199 is about 637.8911701044.

The spelling of 259561199 in words is "two hundred fifty-nine million, five hundred sixty-one thousand, one hundred ninety-nine".