25589960 has 64 divisors (see below), whose sum is σ = 66139200. Its totient is φ = 8812800.

The previous prime is 25589959. The next prime is 25590001. The reversal of 25589960 is 6998552.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6830 + ... + 9890.

It is an arithmetic number, because the mean of its divisors is an integer number (1033425).

Almost surely, 2^25589960 is an apocalyptic number.

25589960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25589960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33069600).

25589960 is an abundant number, since it is smaller than the sum of its proper divisors (40549240).

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

25589960 is a wasteful number, since it uses less digits than its factorization.

25589960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102 (or 3098 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 25589960 is about 5058.6519943558. The cubic root of 25589960 is about 294.6839860239.

It can be divided in two parts, 25 and 589960, that added together give a palindrome (589985).

The spelling of 25589960 in words is "twenty-five million, five hundred eighty-nine thousand, nine hundred sixty".