25065647 has 2 divisors, whose sum is σ = 25065648. Its totient is φ = 25065646.

The previous prime is 25065641. The next prime is 25065697. The reversal of 25065647 is 74656052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25065647 - 2⁴ = 25065631 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25065641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12532823 + 12532824.

It is an arithmetic number, because the mean of its divisors is an integer number (12532824).

Almost surely, 2^25065647 is an apocalyptic number.

25065647 is a deficient number, since it is larger than the sum of its proper divisors (1).

25065647 is an equidigital number, since it uses as much as digits as its factorization.

25065647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 25065647 is about 5006.5603961203. The cubic root of 25065647 is about 292.6574874506.

The spelling of 25065647 in words is "twenty-five million, sixty-five thousand, six hundred forty-seven".