25724322 has 48 divisors (see below), whose sum is σ = 61326720. Its totient is φ = 7743456.

The previous prime is 25724317. The next prime is 25724333. The reversal of 25724322 is 22342752.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9829 + ... + 12167.

It is an arithmetic number, because the mean of its divisors is an integer number (1277640).

Almost surely, 2^25724322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25724322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30663360).

25724322 is an abundant number, since it is smaller than the sum of its proper divisors (35602398).

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

25724322 is a wasteful number, since it uses less digits than its factorization.

25724322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407 (or 2404 counting only the distinct ones).

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

The square root of 25724322 is about 5071.9150229474. The cubic root of 25724322 is about 295.1988394208.

The spelling of 25724322 in words is "twenty-five million, seven hundred twenty-four thousand, three hundred twenty-two".