25525086138511 has 2 divisors, whose sum is σ = 25525086138512. Its totient is φ = 25525086138510.

The previous prime is 25525086138437. The next prime is 25525086138551. The reversal of 25525086138511 is 11583168052552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25525086138511 - 2²⁵ = 25525052584079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25525086138551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762543069255 + 12762543069256.

It is an arithmetic number, because the mean of its divisors is an integer number (12762543069256).

Almost surely, 2^{25525086138511} is an apocalyptic number.

25525086138511 is a deficient number, since it is larger than the sum of its proper divisors (1).

25525086138511 is an equidigital number, since it uses as much as digits as its factorization.

25525086138511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880000, while the sum is 52.

The spelling of 25525086138511 in words is "twenty-five trillion, five hundred twenty-five billion, eighty-six million, one hundred thirty-eight thousand, five hundred eleven".