25585552 has 20 divisors (see below), whose sum is σ = 52181680. Its totient is φ = 12119328.

The previous prime is 25585543. The next prime is 25585577. The reversal of 25585552 is 25558552.

It is a super-2 number, since 2×25585552² = 1309240942289408, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 41778 + ... + 42385.

It is an arithmetic number, because the mean of its divisors is an integer number (2609084).

Almost surely, 2^25585552 is an apocalyptic number.

It is an amenable number.

25585552 is an abundant number, since it is smaller than the sum of its proper divisors (26596128).

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

25585552 is a wasteful number, since it uses less digits than its factorization.

25585552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84190 (or 84184 counting only the distinct ones).

The product of its digits is 100000, while the sum is 37.

The square root of 25585552 is about 5058.2162863998. The cubic root of 25585552 is about 294.6670647834.

Subtracting from 25585552 its reverse (25558552), we obtain a cube (27000 = 30³).

The spelling of 25585552 in words is "twenty-five million, five hundred eighty-five thousand, five hundred fifty-two".