25560665411137 has 2 divisors, whose sum is σ = 25560665411138. Its totient is φ = 25560665411136.

The previous prime is 25560665411123. The next prime is 25560665411243. The reversal of 25560665411137 is 73111456606552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25337088691216 + 223576719921 = 5033596^2 + 472839^2 .

It is a cyclic number.

It is not a de Polignac number, because 25560665411137 - 2⁷ = 25560665411009 is a prime.

It is not a weakly prime, because it can be changed into another prime (25560665411107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12780332705568 + 12780332705569.

It is an arithmetic number, because the mean of its divisors is an integer number (12780332705569).

Almost surely, 2^{25560665411137} is an apocalyptic number.

It is an amenable number.

25560665411137 is a deficient number, since it is larger than the sum of its proper divisors (1).

25560665411137 is an equidigital number, since it uses as much as digits as its factorization.

25560665411137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 25560665411137 in words is "twenty-five trillion, five hundred sixty billion, six hundred sixty-five million, four hundred eleven thousand, one hundred thirty-seven".