12455559 has 8 divisors (see below), whose sum is σ = 18452720. Its totient is φ = 8303688.

The previous prime is 12455533. The next prime is 12455563. The reversal of 12455559 is 95555421.

12455559 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12455559 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12455579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230632 + ... + 230685.

It is an arithmetic number, because the mean of its divisors is an integer number (2306590).

Almost surely, 2^12455559 is an apocalyptic number.

12455559 is a deficient number, since it is larger than the sum of its proper divisors (5997161).

12455559 is an equidigital number, since it uses as much as digits as its factorization.

12455559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461326 (or 461320 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The square root of 12455559 is about 3529.2434033373. The cubic root of 12455559 is about 231.8040792931.

The spelling of 12455559 in words is "twelve million, four hundred fifty-five thousand, five hundred fifty-nine".