25508466 has 64 divisors (see below), whose sum is σ = 61724160. Its totient is φ = 7776000.

The previous prime is 25508447. The next prime is 25508471. The reversal of 25508466 is 66480552.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25508466.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33591 + ... + 34341.

It is an arithmetic number, because the mean of its divisors is an integer number (964440).

Almost surely, 2^25508466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25508466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30862080).

25508466 is an abundant number, since it is smaller than the sum of its proper divisors (36215694).

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

25508466 is a wasteful number, since it uses less digits than its factorization.

25508466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 25508466 is about 5050.5906585270. The cubic root of 25508466 is about 294.3708356748.

The spelling of 25508466 in words is "twenty-five million, five hundred eight thousand, four hundred sixty-six".