25669927 has 2 divisors, whose sum is σ = 25669928. Its totient is φ = 25669926.

The previous prime is 25669921. The next prime is 25669937. The reversal of 25669927 is 72996652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25669927 - 2⁷ = 25669799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25669921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12834963 + 12834964.

It is an arithmetic number, because the mean of its divisors is an integer number (12834964).

Almost surely, 2^25669927 is an apocalyptic number.

25669927 is a deficient number, since it is larger than the sum of its proper divisors (1).

25669927 is an equidigital number, since it uses as much as digits as its factorization.

25669927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 46.

The square root of 25669927 is about 5066.5498122490. The cubic root of 25669927 is about 294.9906230860.

The spelling of 25669927 in words is "twenty-five million, six hundred sixty-nine thousand, nine hundred twenty-seven".