259393279 has 2 divisors, whose sum is σ = 259393280. Its totient is φ = 259393278.

The previous prime is 259393223. The next prime is 259393297. The reversal of 259393279 is 972393952.

Together with next prime (259393297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259393279 - 2⁹ = 259392767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259393679) 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, 129696639 + 129696640.

It is an arithmetic number, because the mean of its divisors is an integer number (129696640).

Almost surely, 2^259393279 is an apocalyptic number.

259393279 is a deficient number, since it is larger than the sum of its proper divisors (1).

259393279 is an equidigital number, since it uses as much as digits as its factorization.

259393279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 918540, while the sum is 49.

The square root of 259393279 is about 16105.6908886269. The cubic root of 259393279 is about 637.7535817530.

The spelling of 259393279 in words is "two hundred fifty-nine million, three hundred ninety-three thousand, two hundred seventy-nine".