25234432 has 44 divisors (see below), whose sum is σ = 53140120. Its totient is φ = 11943936.

The previous prime is 25234397. The next prime is 25234439. The reversal of 25234432 is 23443252.

It is a junction number, because it is equal to n+sod(n) for n = 25234397 and 25234406.

It is not an unprimeable number, because it can be changed into a prime (25234439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18808 + ... + 20104.

It is an arithmetic number, because the mean of its divisors is an integer number (1207730).

Almost surely, 2^25234432 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 25234432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26570060).

25234432 is an abundant number, since it is smaller than the sum of its proper divisors (27905688).

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

25234432 is a wasteful number, since it uses less digits than its factorization.

25234432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336 (or 1318 counting only the distinct ones).

The product of its digits is 5760, while the sum is 25.

The square root of 25234432 is about 5023.3884978170. The cubic root of 25234432 is about 293.3129095054.

Adding to 25234432 its reverse (23443252), we get a palindrome (48677684).

The spelling of 25234432 in words is "twenty-five million, two hundred thirty-four thousand, four hundred thirty-two".