25802112 has 128 divisors (see below), whose sum is σ = 81273600. Its totient is φ = 7096320.

The previous prime is 25802089. The next prime is 25802129. The reversal of 25802112 is 21120852.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 77787 + ... + 78117.

It is an arithmetic number, because the mean of its divisors is an integer number (634950).

Almost surely, 2^25802112 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 25802112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40636800).

25802112 is an abundant number, since it is smaller than the sum of its proper divisors (55471488).

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

25802112 is a wasteful number, since it uses less digits than its factorization.

25802112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 25802112 is about 5079.5779352226. The cubic root of 25802112 is about 295.4960990779.

Adding to 25802112 its reverse (21120852), we get a palindrome (46922964).

The spelling of 25802112 in words is "twenty-five million, eight hundred two thousand, one hundred twelve".