25223824 has 20 divisors (see below), whose sum is σ = 50996736. Its totient is φ = 12063392.

The previous prime is 25223797. The next prime is 25223827. The reversal of 25223824 is 42832252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25223792 and 25223801.

It is not an unprimeable number, because it can be changed into a prime (25223827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33904 + ... + 34639.

Almost surely, 2^25223824 is an apocalyptic number.

It is an amenable number.

25223824 is an abundant number, since it is smaller than the sum of its proper divisors (25772912).

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

25223824 is a wasteful number, since it uses less digits than its factorization.

25223824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68574 (or 68568 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 25223824 is about 5022.3325258290. The cubic root of 25223824 is about 293.2718029803.

The spelling of 25223824 in words is "twenty-five million, two hundred twenty-three thousand, eight hundred twenty-four".