25679959 has 2 divisors, whose sum is σ = 25679960. Its totient is φ = 25679958.

The previous prime is 25679923. The next prime is 25679989. The reversal of 25679959 is 95997652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25679959 - 2⁹ = 25679447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25679989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12839979 + 12839980.

It is an arithmetic number, because the mean of its divisors is an integer number (12839980).

Almost surely, 2^25679959 is an apocalyptic number.

25679959 is a deficient number, since it is larger than the sum of its proper divisors (1).

25679959 is an equidigital number, since it uses as much as digits as its factorization.

25679959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1530900, while the sum is 52.

The square root of 25679959 is about 5067.5397383740. The cubic root of 25679959 is about 295.0290462638.

The spelling of 25679959 in words is "twenty-five million, six hundred seventy-nine thousand, nine hundred fifty-nine".