25727232 has 72 divisors (see below), whose sum is σ = 69250720. Its totient is φ = 8478720.

The previous prime is 25727231. The next prime is 25727257. The reversal of 25727232 is 23272752.

It is a self number, because there is not a number n which added to its sum of digits gives 25727232.

It is not an unprimeable number, because it can be changed into a prime (25727231) 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, 106632 + ... + 106872.

Almost surely, 2^25727232 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 25727232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34625360).

25727232 is an abundant number, since it is smaller than the sum of its proper divisors (43523488).

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

25727232 is a wasteful number, since it uses less digits than its factorization.

25727232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 385 counting only the distinct ones).

The product of its digits is 11760, while the sum is 30.

The square root of 25727232 is about 5072.2018887264. The cubic root of 25727232 is about 295.2099702128.

Adding to 25727232 its reverse (23272752), we get a palindrome (48999984).

The spelling of 25727232 in words is "twenty-five million, seven hundred twenty-seven thousand, two hundred thirty-two".