25908497 has 2 divisors, whose sum is σ = 25908498. Its totient is φ = 25908496.

The previous prime is 25908461. The next prime is 25908551. The reversal of 25908497 is 79480952.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14409616 + 11498881 = 3796^2 + 3391^2 .

It is a cyclic number.

It is not a de Polignac number, because 25908497 - 2¹² = 25904401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25908437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12954248 + 12954249.

It is an arithmetic number, because the mean of its divisors is an integer number (12954249).

Almost surely, 2^25908497 is an apocalyptic number.

It is an amenable number.

25908497 is a deficient number, since it is larger than the sum of its proper divisors (1).

25908497 is an equidigital number, since it uses as much as digits as its factorization.

25908497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 25908497 is about 5090.0389978860. The cubic root of 25908497 is about 295.9016633716.

The spelling of 25908497 in words is "twenty-five million, nine hundred eight thousand, four hundred ninety-seven".