25539359 has 2 divisors, whose sum is σ = 25539360. Its totient is φ = 25539358.

The previous prime is 25539337. The next prime is 25539383. The reversal of 25539359 is 95393552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25539359 - 2⁸ = 25539103 is a prime.

It is equal to p_1597487 and since 25539359 and 1597487 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25530359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12769679 + 12769680.

It is an arithmetic number, because the mean of its divisors is an integer number (12769680).

Almost surely, 2^25539359 is an apocalyptic number.

25539359 is a deficient number, since it is larger than the sum of its proper divisors (1).

25539359 is an equidigital number, since it uses as much as digits as its factorization.

25539359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 182250, while the sum is 41.

The square root of 25539359 is about 5053.6480882626. The cubic root of 25539359 is about 294.4896240734.

The spelling of 25539359 in words is "twenty-five million, five hundred thirty-nine thousand, three hundred fifty-nine".