25528128 has 56 divisors (see below), whose sum is σ = 69738240. Its totient is φ = 8232960.

The previous prime is 25528081. The next prime is 25528133. The reversal of 25528128 is 82182552.

It is a congruent number.

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, 3808 + ... + 8096.

Almost surely, 2^25528128 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 25528128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34869120).

25528128 is an abundant number, since it is smaller than the sum of its proper divisors (44210112).

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

25528128 is a wasteful number, since it uses less digits than its factorization.

25528128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335 (or 4325 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 25528128 is about 5052.5367885845. The cubic root of 25528128 is about 294.4464502164.

The spelling of 25528128 in words is "twenty-five million, five hundred twenty-eight thousand, one hundred twenty-eight".