13252056817 has 2 divisors, whose sum is σ = 13252056818. Its totient is φ = 13252056816.

The previous prime is 13252056799. The next prime is 13252056889. The reversal of 13252056817 is 71865025231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11619977616 + 1632079201 = 107796^2 + 40399^2 .

It is a cyclic number.

It is not a de Polignac number, because 13252056817 - 2⁷ = 13252056689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13252056817.

It is not a weakly prime, because it can be changed into another prime (13252056017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6626028408 + 6626028409.

It is an arithmetic number, because the mean of its divisors is an integer number (6626028409).

Almost surely, 2^13252056817 is an apocalyptic number.

It is an amenable number.

13252056817 is a deficient number, since it is larger than the sum of its proper divisors (1).

13252056817 is an equidigital number, since it uses as much as digits as its factorization.

13252056817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 13252056817 in words is "thirteen billion, two hundred fifty-two million, fifty-six thousand, eight hundred seventeen".