12582855 has 12 divisors (see below), whose sum is σ = 21810360. Its totient is φ = 6710832.

The previous prime is 12582853. The next prime is 12582893. The reversal of 12582855 is 55828521.

It is not a de Polignac number, because 12582855 - 2¹ = 12582853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12582853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139765 + ... + 139854.

It is an arithmetic number, because the mean of its divisors is an integer number (1817530).

Almost surely, 2^12582855 is an apocalyptic number.

12582855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12582855 is a deficient number, since it is larger than the sum of its proper divisors (9227505).

12582855 is a wasteful number, since it uses less digits than its factorization.

12582855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279630 (or 279627 counting only the distinct ones).

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

The square root of 12582855 is about 3547.2320194766. The cubic root of 12582855 is about 232.5910846726.

The spelling of 12582855 in words is "twelve million, five hundred eighty-two thousand, eight hundred fifty-five".