12055255521 has 8 divisors (see below), whose sum is σ = 16095080064. Its totient is φ = 8026134000.

The previous prime is 12055255483. The next prime is 12055255559. The reversal of 12055255521 is 12555255021.

It is a happy number.

12055255521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12055255483) and next prime (12055255559).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12055255521 - 2¹¹ = 12055253473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12055255561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2673126 + ... + 2677631.

It is an arithmetic number, because the mean of its divisors is an integer number (2011885008).

Almost surely, 2^12055255521 is an apocalyptic number.

It is an amenable number.

12055255521 is a deficient number, since it is larger than the sum of its proper divisors (4039824543).

12055255521 is an equidigital number, since it uses as much as digits as its factorization.

12055255521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351511.

The product of its (nonzero) digits is 25000, while the sum is 33.

The spelling of 12055255521 in words is "twelve billion, fifty-five million, two hundred fifty-five thousand, five hundred twenty-one".