25859279 has 2 divisors, whose sum is σ = 25859280. Its totient is φ = 25859278.

The previous prime is 25859243. The next prime is 25859311. The reversal of 25859279 is 97295852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25859279 - 2¹² = 25855183 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 (25859219) 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, 12929639 + 12929640.

It is an arithmetic number, because the mean of its divisors is an integer number (12929640).

Almost surely, 2^25859279 is an apocalyptic number.

25859279 is a deficient number, since it is larger than the sum of its proper divisors (1).

25859279 is an equidigital number, since it uses as much as digits as its factorization.

25859279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 47.

The square root of 25859279 is about 5085.2019625576. The cubic root of 25859279 is about 295.7141712147.

The spelling of 25859279 in words is "twenty-five million, eight hundred fifty-nine thousand, two hundred seventy-nine".