25323216 has 40 divisors (see below), whose sum is σ = 66945120. Its totient is φ = 8244096.

The previous prime is 25323203. The next prime is 25323223. The reversal of 25323216 is 61232352.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4071 + ... + 8198.

It is an arithmetic number, because the mean of its divisors is an integer number (1673628).

Almost surely, 2^25323216 is an apocalyptic number.

It is an amenable number.

25323216 is an abundant number, since it is smaller than the sum of its proper divisors (41621904).

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

25323216 is a wasteful number, since it uses less digits than its factorization.

25323216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12323 (or 12317 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 25323216 is about 5032.2178013278. The cubic root of 25323216 is about 293.6565010412.

Adding to 25323216 its reverse (61232352), we get a palindrome (86555568).

The spelling of 25323216 in words is "twenty-five million, three hundred twenty-three thousand, two hundred sixteen".