25298879 has 2 divisors, whose sum is σ = 25298880. Its totient is φ = 25298878.

The previous prime is 25298869. The next prime is 25298887. The reversal of 25298879 is 97889252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25298879 - 2⁴ = 25298863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25298869) 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, 12649439 + 12649440.

It is an arithmetic number, because the mean of its divisors is an integer number (12649440).

Almost surely, 2^25298879 is an apocalyptic number.

25298879 is a deficient number, since it is larger than the sum of its proper divisors (1).

25298879 is an equidigital number, since it uses as much as digits as its factorization.

25298879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The square root of 25298879 is about 5029.7991013558. The cubic root of 25298879 is about 293.5623975520.

The spelling of 25298879 in words is "twenty-five million, two hundred ninety-eight thousand, eight hundred seventy-nine".