12648555 has 20 divisors (see below), whose sum is σ = 22674432. Its totient is φ = 6745680.

The previous prime is 12648539. The next prime is 12648569. The reversal of 12648555 is 55584621.

12648555 is a `hidden beast` number, since 1 + 2 + 648 + 5 + 5 + 5 = 666.

12648555 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12648555 - 2⁴ = 12648539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15211 + ... + 16020.

Almost surely, 2^12648555 is an apocalyptic number.

12648555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12648555 is a deficient number, since it is larger than the sum of its proper divisors (10025877).

12648555 is an equidigital number, since it uses as much as digits as its factorization.

12648555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31248 (or 31239 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 12648555 is about 3556.4807042918. The cubic root of 12648555 is about 232.9951984373.

It can be divided in two parts, 12648 and 555, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 12648555 in words is "twelve million, six hundred forty-eight thousand, five hundred fifty-five".