25878959 has 2 divisors, whose sum is σ = 25878960. Its totient is φ = 25878958.

The previous prime is 25878953. The next prime is 25878971. The reversal of 25878959 is 95987852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25878959 - 2⁴ = 25878943 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25878959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25878953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12939479 + 12939480.

It is an arithmetic number, because the mean of its divisors is an integer number (12939480).

Almost surely, 2^25878959 is an apocalyptic number.

25878959 is a deficient number, since it is larger than the sum of its proper divisors (1).

25878959 is an equidigital number, since it uses as much as digits as its factorization.

25878959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 53.

The square root of 25878959 is about 5087.1366209293. The cubic root of 25878959 is about 295.7891691704.

The spelling of 25878959 in words is "twenty-five million, eight hundred seventy-eight thousand, nine hundred fifty-nine".