2256455309 has 2 divisors, whose sum is σ = 2256455310. Its totient is φ = 2256455308.

The previous prime is 2256455297. The next prime is 2256455321. The reversal of 2256455309 is 9035546522.

It is a balanced prime because it is at equal distance from previous prime (2256455297) and next prime (2256455321).

It can be written as a sum of positive squares in only one way, i.e., 1749079684 + 507375625 = 41822^2 + 22525^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256455309 - 2⁴ = 2256455293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256452309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128227654 + 1128227655.

It is an arithmetic number, because the mean of its divisors is an integer number (1128227655).

Almost surely, 2^2256455309 is an apocalyptic number.

It is an amenable number.

2256455309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256455309 is an equidigital number, since it uses as much as digits as its factorization.

2256455309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 2256455309 is about 47502.1610982069. The cubic root of 2256455309 is about 1311.6226631891.

The spelling of 2256455309 in words is "two billion, two hundred fifty-six million, four hundred fifty-five thousand, three hundred nine".