25565112 has 64 divisors (see below), whose sum is σ = 72057600. Its totient is φ = 8396640.

The previous prime is 25565101. The next prime is 25565143. The reversal of 25565112 is 21156552.

25565112 is a `hidden beast` number, since 2 + 5 + 5 + 651 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14503 + ... + 16169.

It is an arithmetic number, because the mean of its divisors is an integer number (1125900).

Almost surely, 2^25565112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25565112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36028800).

25565112 is an abundant number, since it is smaller than the sum of its proper divisors (46492488).

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

25565112 is a wasteful number, since it uses less digits than its factorization.

25565112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753 (or 1743 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 25565112 is about 5056.1954076163. The cubic root of 25565112 is about 294.5885751809.

The spelling of 25565112 in words is "twenty-five million, five hundred sixty-five thousand, one hundred twelve".