25728888 has 64 divisors (see below), whose sum is σ = 71712000. Its totient is φ = 7644672.

The previous prime is 25728883. The next prime is 25728889. The reversal of 25728888 is 88882752.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25728883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6093 + ... + 9411.

It is an arithmetic number, because the mean of its divisors is an integer number (1120500).

Almost surely, 2^25728888 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 25728888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35856000).

25728888 is an abundant number, since it is smaller than the sum of its proper divisors (45983112).

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

25728888 is a wasteful number, since it uses less digits than its factorization.

25728888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364 (or 3360 counting only the distinct ones).

The product of its digits is 573440, while the sum is 48.

The square root of 25728888 is about 5072.3651288132. The cubic root of 25728888 is about 295.2163040620.

The spelling of 25728888 in words is "twenty-five million, seven hundred twenty-eight thousand, eight hundred eighty-eight".