25535328 has 192 divisors, whose sum is σ = 85800960. Its totient is φ = 6469632.

The previous prime is 25535317. The next prime is 25535329. The reversal of 25535328 is 82353552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25535329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323193 + ... + 323271.

It is an arithmetic number, because the mean of its divisors is an integer number (446880).

Almost surely, 2^25535328 is an apocalyptic number.

25535328 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 25535328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42900480).

25535328 is an abundant number, since it is smaller than the sum of its proper divisors (60265632).

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

25535328 is a wasteful number, since it uses less digits than its factorization.

25535328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 141 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 25535328 is about 5053.2492517191. The cubic root of 25535328 is about 294.4741296864.

The spelling of 25535328 in words is "twenty-five million, five hundred thirty-five thousand, three hundred twenty-eight".