25895617 has 12 divisors (see below), whose sum is σ = 28714608. Its totient is φ = 23160200.

The previous prime is 25895593. The next prime is 25895621. The reversal of 25895617 is 71659852.

It is a de Polignac number, because none of the positive numbers 2^k-25895617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25895657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55218 + ... + 55684.

It is an arithmetic number, because the mean of its divisors is an integer number (2392884).

Almost surely, 2^25895617 is an apocalyptic number.

It is an amenable number.

25895617 is a deficient number, since it is larger than the sum of its proper divisors (2818991).

25895617 is an equidigital number, since it uses as much as digits as its factorization.

25895617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 549 counting only the distinct ones).

The product of its digits is 151200, while the sum is 43.

The square root of 25895617 is about 5088.7736243618. The cubic root of 25895617 is about 295.8526209647.

The spelling of 25895617 in words is "twenty-five million, eight hundred ninety-five thousand, six hundred seventeen".