25231232 has 64 divisors (see below), whose sum is σ = 55263600. Its totient is φ = 11403264.

The previous prime is 25231231. The next prime is 25231249. The reversal of 25231232 is 23213252.

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

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25231231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98048 + ... + 98304.

Almost surely, 2^25231232 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 25231232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27631800).

25231232 is an abundant number, since it is smaller than the sum of its proper divisors (30032368).

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

25231232 is a wasteful number, since it uses less digits than its factorization.

25231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 331 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 25231232 is about 5023.0699776133. The cubic root of 25231232 is about 293.3005105606.

Adding to 25231232 its reverse (23213252), we get a palindrome (48444484).

The spelling of 25231232 in words is "twenty-five million, two hundred thirty-one thousand, two hundred thirty-two".