12000550 has 12 divisors (see below), whose sum is σ = 22321116. Its totient is φ = 4800200.

The previous prime is 12000523. The next prime is 12000551. The reversal of 12000550 is 5500021.

It is a self number, because there is not a number n which added to its sum of digits gives 12000550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000551) 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 5 ways as a sum of consecutive naturals, for example, 119956 + ... + 120055.

It is an arithmetic number, because the mean of its divisors is an integer number (1860093).

Almost surely, 2^12000550 is an apocalyptic number.

12000550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12000550 is a deficient number, since it is larger than the sum of its proper divisors (10320566).

12000550 is a wasteful number, since it uses less digits than its factorization.

12000550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240023 (or 240018 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 12000550 is about 3464.1809998902. The cubic root of 12000550 is about 228.9463461952.

Adding to 12000550 its reverse (5500021), we get a palindrome (17500571).

The spelling of 12000550 in words is "twelve million, five hundred fifty", and thus it is an aban number.