25416617 has 2 divisors, whose sum is σ = 25416618. Its totient is φ = 25416616.

The previous prime is 25416607. The next prime is 25416691. The reversal of 25416617 is 71661452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15202201 + 10214416 = 3899^2 + 3196^2 .

It is a cyclic number.

It is not a de Polignac number, because 25416617 - 2⁸ = 25416361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25416607) 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, 12708308 + 12708309.

It is an arithmetic number, because the mean of its divisors is an integer number (12708309).

Almost surely, 2^25416617 is an apocalyptic number.

It is an amenable number.

25416617 is a deficient number, since it is larger than the sum of its proper divisors (1).

25416617 is an equidigital number, since it uses as much as digits as its factorization.

25416617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 25416617 is about 5041.4895616276. The cubic root of 25416617 is about 294.0170945064.

The spelling of 25416617 in words is "twenty-five million, four hundred sixteen thousand, six hundred seventeen".