25878208 has 56 divisors (see below), whose sum is σ = 54132480. Its totient is φ = 12257280.

The previous prime is 25878173. The next prime is 25878221. The reversal of 25878208 is 80287852.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135393 + ... + 135583.

Almost surely, 2^25878208 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 25878208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27066240).

25878208 is an abundant number, since it is smaller than the sum of its proper divisors (28254272).

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

25878208 is a wasteful number, since it uses less digits than its factorization.

25878208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 25878208 is about 5087.0628067678. The cubic root of 25878208 is about 295.7863079036.

The spelling of 25878208 in words is "twenty-five million, eight hundred seventy-eight thousand, two hundred eight".