25935617 has 2 divisors, whose sum is σ = 25935618. Its totient is φ = 25935616.

The previous prime is 25935529. The next prime is 25935619. The reversal of 25935617 is 71653952.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14753281 + 11182336 = 3841^2 + 3344^2 .

It is a cyclic number.

It is not a de Polignac number, because 25935617 - 2¹⁴ = 25919233 is a prime.

Together with 25935619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25935619) 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, 12967808 + 12967809.

It is an arithmetic number, because the mean of its divisors is an integer number (12967809).

Almost surely, 2^25935617 is an apocalyptic number.

It is an amenable number.

25935617 is a deficient number, since it is larger than the sum of its proper divisors (1).

25935617 is an equidigital number, since it uses as much as digits as its factorization.

25935617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 38.

The square root of 25935617 is about 5092.7023278413. The cubic root of 25935617 is about 296.0048734588.

The spelling of 25935617 in words is "twenty-five million, nine hundred thirty-five thousand, six hundred seventeen".