25528338 has 48 divisors (see below), whose sum is σ = 62371680. Its totient is φ = 7733880.

The previous prime is 25528333. The next prime is 25528361. The reversal of 25528338 is 83382552.

It is not an unprimeable number, because it can be changed into a prime (25528331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4581 + ... + 8487.

It is an arithmetic number, because the mean of its divisors is an integer number (1299410).

Almost surely, 2^25528338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25528338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31185840).

25528338 is an abundant number, since it is smaller than the sum of its proper divisors (36843342).

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

25528338 is a wasteful number, since it uses less digits than its factorization.

25528338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3940 (or 3923 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 25528338 is about 5052.5575701817. The cubic root of 25528338 is about 294.4472576080.

The spelling of 25528338 in words is "twenty-five million, five hundred twenty-eight thousand, three hundred thirty-eight".