25306286879 has 2 divisors, whose sum is σ = 25306286880. Its totient is φ = 25306286878.

The previous prime is 25306286867. The next prime is 25306286881. The reversal of 25306286879 is 97868260352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25306286879 - 2³² = 21011319583 is a prime.

Together with 25306286881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25306286839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12653143439 + 12653143440.

It is an arithmetic number, because the mean of its divisors is an integer number (12653143440).

Almost surely, 2^25306286879 is an apocalyptic number.

25306286879 is a deficient number, since it is larger than the sum of its proper divisors (1).

25306286879 is an equidigital number, since it uses as much as digits as its factorization.

25306286879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 25306286879 in words is "twenty-five billion, three hundred six million, two hundred eighty-six thousand, eight hundred seventy-nine".