25827228 has 96 divisors (see below), whose sum is σ = 77414400. Its totient is φ = 7293888.

The previous prime is 25827163. The next prime is 25827239. The reversal of 25827228 is 82272852.

25827228 is a `hidden beast` number, since 2 + 582 + 72 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 25827192 and 25827201.

It is a congruent number.

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, 95878 + ... + 96146.

It is an arithmetic number, because the mean of its divisors is an integer number (806400).

Almost surely, 2^25827228 is an apocalyptic number.

25827228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25827228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38707200).

25827228 is an abundant number, since it is smaller than the sum of its proper divisors (51587172).

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

25827228 is a wasteful number, since it uses less digits than its factorization.

25827228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 408 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 25827228 is about 5082.0495865349. The cubic root of 25827228 is about 295.5919474748.

The spelling of 25827228 in words is "twenty-five million, eight hundred twenty-seven thousand, two hundred twenty-eight".