25321116 has 24 divisors (see below), whose sum is σ = 59164560. Its totient is φ = 8428672.

The previous prime is 25321099. The next prime is 25321151. The reversal of 25321116 is 61112352.

It is a junction number, because it is equal to n+sod(n) for n = 25321092 and 25321101.

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, 14650 + ... + 16286.

It is an arithmetic number, because the mean of its divisors is an integer number (2465190).

Almost surely, 2^25321116 is an apocalyptic number.

It is an amenable number.

25321116 is an abundant number, since it is smaller than the sum of its proper divisors (33843444).

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

25321116 is a wasteful number, since it uses less digits than its factorization.

25321116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933 (or 2931 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 25321116 is about 5032.0091414861. The cubic root of 25321116 is about 293.6483833822.

Adding to 25321116 its reverse (61112352), we get a palindrome (86433468).

The spelling of 25321116 in words is "twenty-five million, three hundred twenty-one thousand, one hundred sixteen".