259259261 has 2 divisors, whose sum is σ = 259259262. Its totient is φ = 259259260.

The previous prime is 259259257. The next prime is 259259267. The reversal of 259259261 is 162952952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129732100 + 129527161 = 11390^2 + 11381^2 .

It is a cyclic number.

It is not a de Polignac number, because 259259261 - 2² = 259259257 is a prime.

It is a super-2 number, since 2×259259261² = 134430728828532242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259259267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129629630 + 129629631.

It is an arithmetic number, because the mean of its divisors is an integer number (129629631).

Almost surely, 2^259259261 is an apocalyptic number.

It is an amenable number.

259259261 is a deficient number, since it is larger than the sum of its proper divisors (1).

259259261 is an equidigital number, since it uses as much as digits as its factorization.

259259261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 41.

The square root of 259259261 is about 16101.5297720434. The cubic root of 259259261 is about 637.6437290179.

The spelling of 259259261 in words is "two hundred fifty-nine million, two hundred fifty-nine thousand, two hundred sixty-one".