25311259667 has 2 divisors, whose sum is σ = 25311259668. Its totient is φ = 25311259666.

The previous prime is 25311259613. The next prime is 25311259669. The reversal of 25311259667 is 76695211352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25311259667 - 2⁸ = 25311259411 is a prime.

Together with 25311259669, 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 (25311259669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12655629833 + 12655629834.

It is an arithmetic number, because the mean of its divisors is an integer number (12655629834).

Almost surely, 2^25311259667 is an apocalyptic number.

25311259667 is a deficient number, since it is larger than the sum of its proper divisors (1).

25311259667 is an equidigital number, since it uses as much as digits as its factorization.

25311259667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 47.

The spelling of 25311259667 in words is "twenty-five billion, three hundred eleven million, two hundred fifty-nine thousand, six hundred sixty-seven".