12855582 has 12 divisors (see below), whose sum is σ = 27853800. Its totient is φ = 4285188.

The previous prime is 12855529. The next prime is 12855589. The reversal of 12855582 is 28555821.

12855582 is a `hidden beast` number, since 1 + 28 + 55 + 582 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12855589) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357082 + ... + 357117.

It is an arithmetic number, because the mean of its divisors is an integer number (2321150).

Almost surely, 2^12855582 is an apocalyptic number.

12855582 is an abundant number, since it is smaller than the sum of its proper divisors (14998218).

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

12855582 is a wasteful number, since it uses less digits than its factorization.

12855582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714207 (or 714204 counting only the distinct ones).

The product of its digits is 32000, while the sum is 36.

The square root of 12855582 is about 3585.4681702673. The cubic root of 12855582 is about 234.2595192166.

The spelling of 12855582 in words is "twelve million, eight hundred fifty-five thousand, five hundred eighty-two".