25417668 has 96 divisors (see below), whose sum is σ = 67415040. Its totient is φ = 7413120.

The previous prime is 25417657. The next prime is 25417681. The reversal of 25417668 is 86671452.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 193963 + ... + 194093.

It is an arithmetic number, because the mean of its divisors is an integer number (702240).

Almost surely, 2^25417668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25417668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33707520).

25417668 is an abundant number, since it is smaller than the sum of its proper divisors (41997372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25417668 is a wasteful number, since it uses less digits than its factorization.

25417668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 215 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 25417668 is about 5041.5937956166. The cubic root of 25417668 is about 294.0211470744.

The spelling of 25417668 in words is "twenty-five million, four hundred seventeen thousand, six hundred sixty-eight".