25224732 has 36 divisors (see below), whose sum is σ = 68668600. Its totient is φ = 7761312.

The previous prime is 25224707. The next prime is 25224733. The reversal of 25224732 is 23742252.

It is a tau number, because it is divible by the number of its divisors (36).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 25224696 and 25224705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25224733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26482 + ... + 27417.

Almost surely, 2^25224732 is an apocalyptic number.

It is an amenable number.

25224732 is an abundant number, since it is smaller than the sum of its proper divisors (43443868).

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

25224732 is a wasteful number, since it uses less digits than its factorization.

25224732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53922 (or 53917 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 25224732 is about 5022.4229212602. The cubic root of 25224732 is about 293.2753219762.

Adding to 25224732 its reverse (23742252), we get a palindrome (48966984).

The spelling of 25224732 in words is "twenty-five million, two hundred twenty-four thousand, seven hundred thirty-two".