25680079 has 2 divisors, whose sum is σ = 25680080. Its totient is φ = 25680078.

The previous prime is 25680049. The next prime is 25680089. The reversal of 25680079 is 97008652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25680079 - 2⁹ = 25679567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25680049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12840039 + 12840040.

It is an arithmetic number, because the mean of its divisors is an integer number (12840040).

Almost surely, 2^25680079 is an apocalyptic number.

25680079 is a deficient number, since it is larger than the sum of its proper divisors (1).

25680079 is an equidigital number, since it uses as much as digits as its factorization.

25680079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 25680079 is about 5067.5515784252. The cubic root of 25680079 is about 295.0295058106.

The spelling of 25680079 in words is "twenty-five million, six hundred eighty thousand, seventy-nine".