25115532 has 24 divisors (see below), whose sum is σ = 63111216. Its totient is φ = 7727808.

The previous prime is 25115527. The next prime is 25115539. The reversal of 25115532 is 23551152.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25115539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80343 + ... + 80654.

It is an arithmetic number, because the mean of its divisors is an integer number (2629634).

Almost surely, 2^25115532 is an apocalyptic number.

It is an amenable number.

25115532 is an abundant number, since it is smaller than the sum of its proper divisors (37995684).

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

25115532 is a wasteful number, since it uses less digits than its factorization.

25115532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161017 (or 161015 counting only the distinct ones).

The product of its digits is 1500, while the sum is 24.

The square root of 25115532 is about 5011.5398831098. The cubic root of 25115532 is about 292.8515052426.

Adding to 25115532 its reverse (23551152), we get a palindrome (48666684).

The spelling of 25115532 in words is "twenty-five million, one hundred fifteen thousand, five hundred thirty-two".