25925210251 has 2 divisors, whose sum is σ = 25925210252. Its totient is φ = 25925210250.

The previous prime is 25925210167. The next prime is 25925210261. The reversal of 25925210251 is 15201252952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25925210251 - 2⁷ = 25925210123 is a prime.

It is not a weakly prime, because it can be changed into another prime (25925210261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12962605125 + 12962605126.

It is an arithmetic number, because the mean of its divisors is an integer number (12962605126).

Almost surely, 2^25925210251 is an apocalyptic number.

25925210251 is a deficient number, since it is larger than the sum of its proper divisors (1).

25925210251 is an equidigital number, since it uses as much as digits as its factorization.

25925210251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 25925210251 in words is "twenty-five billion, nine hundred twenty-five million, two hundred ten thousand, two hundred fifty-one".