25135716811 has 2 divisors, whose sum is σ = 25135716812. Its totient is φ = 25135716810.

The previous prime is 25135716803. The next prime is 25135716833. The reversal of 25135716811 is 11861753152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25135716811 - 2³ = 25135716803 is a prime.

It is not a weakly prime, because it can be changed into another prime (25135716871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12567858405 + 12567858406.

It is an arithmetic number, because the mean of its divisors is an integer number (12567858406).

Almost surely, 2^25135716811 is an apocalyptic number.

25135716811 is a deficient number, since it is larger than the sum of its proper divisors (1).

25135716811 is an equidigital number, since it uses as much as digits as its factorization.

25135716811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 40.

The spelling of 25135716811 in words is "twenty-five billion, one hundred thirty-five million, seven hundred sixteen thousand, eight hundred eleven".