25356936131 has 2 divisors, whose sum is σ = 25356936132. Its totient is φ = 25356936130.

The previous prime is 25356936029. The next prime is 25356936133. The reversal of 25356936131 is 13163965352.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25356936131 - 2²⁶ = 25289827267 is a prime.

It is a super-2 number, since 2×25356936131² (a number of 22 digits) contains 22 as substring.

Together with 25356936133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25356936133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12678468065 + 12678468066.

It is an arithmetic number, because the mean of its divisors is an integer number (12678468066).

Almost surely, 2^25356936131 is an apocalyptic number.

25356936131 is a deficient number, since it is larger than the sum of its proper divisors (1).

25356936131 is an equidigital number, since it uses as much as digits as its factorization.

25356936131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 44.

The spelling of 25356936131 in words is "twenty-five billion, three hundred fifty-six million, nine hundred thirty-six thousand, one hundred thirty-one".