25966679 has 2 divisors, whose sum is σ = 25966680. Its totient is φ = 25966678.

The previous prime is 25966669. The next prime is 25966693. The reversal of 25966679 is 97666952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25966679 - 2¹⁶ = 25901143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25966639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12983339 + 12983340.

It is an arithmetic number, because the mean of its divisors is an integer number (12983340).

Almost surely, 2^25966679 is an apocalyptic number.

25966679 is a deficient number, since it is larger than the sum of its proper divisors (1).

25966679 is an equidigital number, since it uses as much as digits as its factorization.

25966679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 50.

The square root of 25966679 is about 5095.7510731981. The cubic root of 25966679 is about 296.1229971855.

The spelling of 25966679 in words is "twenty-five million, nine hundred sixty-six thousand, six hundred seventy-nine".