25266253879 has 2 divisors, whose sum is σ = 25266253880. Its totient is φ = 25266253878.

The previous prime is 25266253849. The next prime is 25266253933. The reversal of 25266253879 is 97835266252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25266253879 - 2⁵ = 25266253847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25266253849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12633126939 + 12633126940.

It is an arithmetic number, because the mean of its divisors is an integer number (12633126940).

Almost surely, 2^25266253879 is an apocalyptic number.

25266253879 is a deficient number, since it is larger than the sum of its proper divisors (1).

25266253879 is an equidigital number, since it uses as much as digits as its factorization.

25266253879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 55.

The spelling of 25266253879 in words is "twenty-five billion, two hundred sixty-six million, two hundred fifty-three thousand, eight hundred seventy-nine".