25664324 has 12 divisors (see below), whose sum is σ = 51328704. Its totient is φ = 10998984.

The previous prime is 25664323. The next prime is 25664363. The reversal of 25664324 is 42346652.

25664324 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25664321) 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, 458264 + ... + 458319.

It is an arithmetic number, because the mean of its divisors is an integer number (4277392).

Almost surely, 2^25664324 is an apocalyptic number.

It is an amenable number.

25664324 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25664324 is a wasteful number, since it uses less digits than its factorization.

25664324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916594 (or 916592 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

The square root of 25664324 is about 5065.9968416887. The cubic root of 25664324 is about 294.9691588940.

Adding to 25664324 its sum of digits (32), we get a square (25664356 = 5066²).

The spelling of 25664324 in words is "twenty-five million, six hundred sixty-four thousand, three hundred twenty-four".