2255718239 has 2 divisors, whose sum is σ = 2255718240. Its totient is φ = 2255718238.

The previous prime is 2255718233. The next prime is 2255718251. The reversal of 2255718239 is 9328175522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2255718239 - 2²⁸ = 1987282783 is a prime.

It is a super-2 number, since 2×2255718239² = 10176529547514522242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2255718239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2255718233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127859119 + 1127859120.

It is an arithmetic number, because the mean of its divisors is an integer number (1127859120).

Almost surely, 2^2255718239 is an apocalyptic number.

2255718239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255718239 is an equidigital number, since it uses as much as digits as its factorization.

2255718239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 44.

The square root of 2255718239 is about 47494.4021859419. The cubic root of 2255718239 is about 1311.4798340070.

The spelling of 2255718239 in words is "two billion, two hundred fifty-five million, seven hundred eighteen thousand, two hundred thirty-nine".