25585120 has 48 divisors (see below), whose sum is σ = 65944368. Its totient is φ = 9303040.

The previous prime is 25585117. The next prime is 25585141. The reversal of 25585120 is 2158552.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5509 + ... + 9028.

It is an arithmetic number, because the mean of its divisors is an integer number (1373841).

Almost surely, 2^25585120 is an apocalyptic number.

25585120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25585120 is an abundant number, since it is smaller than the sum of its proper divisors (40359248).

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

25585120 is a wasteful number, since it uses less digits than its factorization.

25585120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14563 (or 14555 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 25585120 is about 5058.1735834192. The cubic root of 25585120 is about 294.6654063358.

The spelling of 25585120 in words is "twenty-five million, five hundred eighty-five thousand, one hundred twenty".