2255969 has 2 divisors, whose sum is σ = 2255970. Its totient is φ = 2255968.

The previous prime is 2255959. The next prime is 2255971. The reversal of 2255969 is 9695522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2140369 + 115600 = 1463^2 + 340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2255969 is a prime.

It is a super-2 number, since 2×2255969² = 10178792257922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2255971, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2255959) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127984 + 1127985.

It is an arithmetic number, because the mean of its divisors is an integer number (1127985).

2^2255969 is an apocalyptic number.

It is an amenable number.

2255969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255969 is an equidigital number, since it uses as much as digits as its factorization.

2255969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 38.

The square root of 2255969 is about 1501.9883488230. The cubic root of 2255969 is about 131.1528429883.

It can be divided in two parts, 2255 and 969, that multiplied together give a triangular number (2185095 = T₂₀₉₀).

The spelling of 2255969 in words is "two million, two hundred fifty-five thousand, nine hundred sixty-nine".