25278088 has 16 divisors (see below), whose sum is σ = 51705360. Its totient is φ = 11490000.

The previous prime is 25278079. The next prime is 25278089. The reversal of 25278088 is 88087252.

It is a self number, because there is not a number n which added to its sum of digits gives 25278088.

It is not an unprimeable number, because it can be changed into a prime (25278089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143538 + ... + 143713.

It is an arithmetic number, because the mean of its divisors is an integer number (3231585).

Almost surely, 2^25278088 is an apocalyptic number.

It is an amenable number.

25278088 is an abundant number, since it is smaller than the sum of its proper divisors (26427272).

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

25278088 is a wasteful number, since it uses less digits than its factorization.

25278088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287268 (or 287264 counting only the distinct ones).

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

The square root of 25278088 is about 5027.7318942044. The cubic root of 25278088 is about 293.4819575117.

The spelling of 25278088 in words is "twenty-five million, two hundred seventy-eight thousand, eighty-eight".