12055559 has 8 divisors (see below), whose sum is σ = 12528768. Its totient is φ = 11587680.

The previous prime is 12055553. The next prime is 12055577. The reversal of 12055559 is 95555021.

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

It is a cyclic number.

It is not a de Polignac number, because 12055559 - 2¹² = 12051463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12055553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3629 + ... + 6105.

It is an arithmetic number, because the mean of its divisors is an integer number (1566096).

Almost surely, 2^12055559 is an apocalyptic number.

12055559 is a deficient number, since it is larger than the sum of its proper divisors (473209).

12055559 is a wasteful number, since it uses less digits than its factorization.

12055559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665.

The product of its (nonzero) digits is 11250, while the sum is 32.

The square root of 12055559 is about 3472.1116053491. Note that the first 3 decimals coincide. The cubic root of 12055559 is about 229.2956333847.

The spelling of 12055559 in words is "twelve million, fifty-five thousand, five hundred fifty-nine".