2256844913 has 2 divisors, whose sum is σ = 2256844914. Its totient is φ = 2256844912.

The previous prime is 2256844901. The next prime is 2256844937. The reversal of 2256844913 is 3194486522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1292618209 + 964226704 = 35953^2 + 31052^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256844913 - 2²⁶ = 2189736049 is a prime.

It is a super-2 number, since 2×2256844913² = 10186697922667955138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2256844313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128422456 + 1128422457.

It is an arithmetic number, because the mean of its divisors is an integer number (1128422457).

Almost surely, 2^2256844913 is an apocalyptic number.

It is an amenable number.

2256844913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256844913 is an equidigital number, since it uses as much as digits as its factorization.

2256844913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 44.

The square root of 2256844913 is about 47506.2618293631. The cubic root of 2256844913 is about 1311.6981479588.

The spelling of 2256844913 in words is "two billion, two hundred fifty-six million, eight hundred forty-four thousand, nine hundred thirteen".