11256255562117 has 2 divisors, whose sum is σ = 11256255562118. Its totient is φ = 11256255562116.

The previous prime is 11256255562087. The next prime is 11256255562141. The reversal of 11256255562117 is 71126555265211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8539013221281 + 2717242340836 = 2922159^2 + 1648406^2 .

It is an emirp because it is prime and its reverse (71126555265211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11256255562117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11256255562157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5628127781058 + 5628127781059.

It is an arithmetic number, because the mean of its divisors is an integer number (5628127781059).

Almost surely, 2^{11256255562117} is an apocalyptic number.

It is an amenable number.

11256255562117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11256255562117 is an equidigital number, since it uses as much as digits as its factorization.

11256255562117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260000, while the sum is 49.

The spelling of 11256255562117 in words is "eleven trillion, two hundred fifty-six billion, two hundred fifty-five million, five hundred sixty-two thousand, one hundred seventeen".