25500032 has 64 divisors (see below), whose sum is σ = 53721360. Its totient is φ = 12042240.

The previous prime is 25500023. The next prime is 25500043. The reversal of 25500032 is 23000552.

It is a tau number, because it is divible by the number of its divisors (64).

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, 225608 + ... + 225720.

Almost surely, 2^25500032 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 25500032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26860680).

25500032 is an abundant number, since it is smaller than the sum of its proper divisors (28221328).

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

25500032 is a wasteful number, since it uses less digits than its factorization.

25500032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 25500032 is about 5049.7556376522. The cubic root of 25500032 is about 294.3383889660.

Adding to 25500032 its reverse (23000552), we get a palindrome (48500584).

The spelling of 25500032 in words is "twenty-five million, five hundred thousand, thirty-two".