25788216 has 16 divisors (see below), whose sum is σ = 64470600. Its totient is φ = 8596064.

The previous prime is 25788137. The next prime is 25788227. The reversal of 25788216 is 61288752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537231 + ... + 537278.

Almost surely, 2^25788216 is an apocalyptic number.

It is an amenable number.

25788216 is an abundant number, since it is smaller than the sum of its proper divisors (38682384).

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

25788216 is a wasteful number, since it uses less digits than its factorization.

25788216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074518 (or 1074514 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 25788216 is about 5078.2099208284. The cubic root of 25788216 is about 295.4430420366.

The spelling of 25788216 in words is "twenty-five million, seven hundred eighty-eight thousand, two hundred sixteen".