259259257 has 2 divisors, whose sum is σ = 259259258. Its totient is φ = 259259256.

The previous prime is 259259251. The next prime is 259259261. The reversal of 259259257 is 752952952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144576576 + 114682681 = 12024^2 + 10709^2 .

It is a cyclic number.

It is not a de Polignac number, because 259259257 - 2³ = 259259249 is a prime.

It is not a weakly prime, because it can be changed into another prime (259259251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129629628 + 129629629.

It is an arithmetic number, because the mean of its divisors is an integer number (129629629).

Almost surely, 2^259259257 is an apocalyptic number.

It is an amenable number.

259259257 is a deficient number, since it is larger than the sum of its proper divisors (1).

259259257 is an equidigital number, since it uses as much as digits as its factorization.

259259257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 567000, while the sum is 46.

The square root of 259259257 is about 16101.5296478316. The cubic root of 259259257 is about 637.6437257386.

The spelling of 259259257 in words is "two hundred fifty-nine million, two hundred fifty-nine thousand, two hundred fifty-seven".