12553256017 has 2 divisors, whose sum is σ = 12553256018. Its totient is φ = 12553256016.

The previous prime is 12553255999. The next prime is 12553256039. The reversal of 12553256017 is 71065235521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11998135296 + 555120721 = 109536^2 + 23561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12553256017 is a prime.

It is not a weakly prime, because it can be changed into another prime (12553256047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6276628008 + 6276628009.

It is an arithmetic number, because the mean of its divisors is an integer number (6276628009).

Almost surely, 2^12553256017 is an apocalyptic number.

It is an amenable number.

12553256017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12553256017 is an equidigital number, since it uses as much as digits as its factorization.

12553256017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 12553256017 in words is "twelve billion, five hundred fifty-three million, two hundred fifty-six thousand, seventeen".