12055000555 has 32 divisors (see below), whose sum is σ = 15748020288. Its totient is φ = 8805888000.

The previous prime is 12055000519. The next prime is 12055000567. The reversal of 12055000555 is 55500055021.

It is a happy number.

It is not a de Polignac number, because 12055000555 - 2¹³ = 12054992363 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2867455 + ... + 2871655.

It is an arithmetic number, because the mean of its divisors is an integer number (492125634).

Almost surely, 2^12055000555 is an apocalyptic number.

12055000555 is a deficient number, since it is larger than the sum of its proper divisors (3693019733).

12055000555 is a wasteful number, since it uses less digits than its factorization.

12055000555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4687.

The product of its (nonzero) digits is 6250, while the sum is 28.

Adding to 12055000555 its reverse (55500055021), we get a palindrome (67555055576).

The spelling of 12055000555 in words is "twelve billion, fifty-five million, five hundred fifty-five", and thus it is an aban number.