25167980308117 has 2 divisors, whose sum is σ = 25167980308118. Its totient is φ = 25167980308116.

The previous prime is 25167980308109. The next prime is 25167980308123. The reversal of 25167980308117 is 71180308976152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24089651750641 + 1078328557476 = 4908121^2 + 1038426^2 .

It is a cyclic number.

It is not a de Polignac number, because 25167980308117 - 2³ = 25167980308109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25167980308217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12583990154058 + 12583990154059.

It is an arithmetic number, because the mean of its divisors is an integer number (12583990154059).

Almost surely, 2^{25167980308117} is an apocalyptic number.

It is an amenable number.

25167980308117 is a deficient number, since it is larger than the sum of its proper divisors (1).

25167980308117 is an equidigital number, since it uses as much as digits as its factorization.

25167980308117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 58.

The spelling of 25167980308117 in words is "twenty-five trillion, one hundred sixty-seven billion, nine hundred eighty million, three hundred eight thousand, one hundred seventeen".