259306897 has 2 divisors, whose sum is σ = 259306898. Its totient is φ = 259306896.

The previous prime is 259306891. The next prime is 259306937. The reversal of 259306897 is 798603952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255712081 + 3594816 = 15991^2 + 1896^2 .

It is a cyclic number.

It is not a de Polignac number, because 259306897 - 2⁷ = 259306769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 259306897.

It is not a weakly prime, because it can be changed into another prime (259306891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129653448 + 129653449.

It is an arithmetic number, because the mean of its divisors is an integer number (129653449).

Almost surely, 2^259306897 is an apocalyptic number.

It is an amenable number.

259306897 is a deficient number, since it is larger than the sum of its proper divisors (1).

259306897 is an equidigital number, since it uses as much as digits as its factorization.

259306897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 259306897 is about 16103.0089424306. The cubic root of 259306897 is about 637.6827799360.

The spelling of 259306897 in words is "two hundred fifty-nine million, three hundred six thousand, eight hundred ninety-seven".