25406253107 has 2 divisors, whose sum is σ = 25406253108. Its totient is φ = 25406253106.

The previous prime is 25406253043. The next prime is 25406253179. The reversal of 25406253107 is 70135260452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25406253107 - 2⁶ = 25406253043 is a prime.

It is not a weakly prime, because it can be changed into another prime (25406253407) 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, 12703126553 + 12703126554.

It is an arithmetic number, because the mean of its divisors is an integer number (12703126554).

Almost surely, 2^25406253107 is an apocalyptic number.

25406253107 is a deficient number, since it is larger than the sum of its proper divisors (1).

25406253107 is an equidigital number, since it uses as much as digits as its factorization.

25406253107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 25406253107 in words is "twenty-five billion, four hundred six million, two hundred fifty-three thousand, one hundred seven".