12055055 has 4 divisors (see below), whose sum is σ = 14466072. Its totient is φ = 9644040.

The previous prime is 12055051. The next prime is 12055079. The reversal of 12055055 is 55055021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12055055 - 2² = 12055051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12055055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12055051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205501 + ... + 1205510.

It is an arithmetic number, because the mean of its divisors is an integer number (3616518).

Almost surely, 2^12055055 is an apocalyptic number.

12055055 is a deficient number, since it is larger than the sum of its proper divisors (2411017).

12055055 is an equidigital number, since it uses as much as digits as its factorization.

12055055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411016.

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 12055055 is about 3472.0390262784. The cubic root of 12055055 is about 229.2924379955.

The spelling of 12055055 in words is "twelve million, fifty-five thousand, fifty-five".