25396560 has 120 divisors (see below), whose sum is σ = 97493760. Its totient is φ = 5803776.

The previous prime is 25396543. The next prime is 25396561. The reversal of 25396560 is 6569352.

25396560 is a `hidden beast` number, since 2 + 5 + 3 + 96 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25396561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2521 + ... + 7559.

It is an arithmetic number, because the mean of its divisors is an integer number (812448).

Almost surely, 2^25396560 is an apocalyptic number.

25396560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is a pronic number, being equal to 5039×5040.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25396560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48746880).

25396560 is an abundant number, since it is smaller than the sum of its proper divisors (72097200).

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

25396560 is a wasteful number, since it uses less digits than its factorization.

25396560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065 (or 5056 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 25396560 is about 5039.4999751960. The cubic root of 25396560 is about 293.9397349750.

The spelling of 25396560 in words is "twenty-five million, three hundred ninety-six thousand, five hundred sixty".