25560416 has 48 divisors (see below), whose sum is σ = 58623264. Its totient is φ = 10742784.

The previous prime is 25560389. The next prime is 25560463. The reversal of 25560416 is 61406552.

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, 10796 + ... + 12948.

It is an arithmetic number, because the mean of its divisors is an integer number (1221318).

Almost surely, 2^25560416 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 25560416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29311632).

25560416 is an abundant number, since it is smaller than the sum of its proper divisors (33062848).

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

25560416 is a wasteful number, since it uses less digits than its factorization.

25560416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223 (or 2215 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 25560416 is about 5055.7310055026. The cubic root of 25560416 is about 294.5705366308.

Adding to 25560416 its reverse (61406552), we get a palindrome (86966968).

The spelling of 25560416 in words is "twenty-five million, five hundred sixty thousand, four hundred sixteen".