25816288 has 24 divisors (see below), whose sum is σ = 53502120. Its totient is φ = 12228480.

The previous prime is 25816283. The next prime is 25816309. The reversal of 25816288 is 88261852.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25816288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25816283) 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, 20623 + ... + 21838.

It is an arithmetic number, because the mean of its divisors is an integer number (2229255).

Almost surely, 2^25816288 is an apocalyptic number.

It is an amenable number.

25816288 is an abundant number, since it is smaller than the sum of its proper divisors (27685832).

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

25816288 is a wasteful number, since it uses less digits than its factorization.

25816288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42490 (or 42482 counting only the distinct ones).

The product of its digits is 61440, while the sum is 40.

The square root of 25816288 is about 5080.9731351386. The cubic root of 25816288 is about 295.5502055761.

The spelling of 25816288 in words is "twenty-five million, eight hundred sixteen thousand, two hundred eighty-eight".