12055810 has 16 divisors (see below), whose sum is σ = 23369976. Its totient is φ = 4451328.

The previous prime is 12055801. The next prime is 12055811. The reversal of 12055810 is 1855021.

It can be written as a sum of positive squares in 4 ways, for example, as 8357881 + 3697929 = 2891^2 + 1923^2 .

It is a super-2 number, since 2×12055810² = 290685109512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12055811) 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, 46239 + ... + 46498.

Almost surely, 2^12055810 is an apocalyptic number.

12055810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12055810 is a deficient number, since it is larger than the sum of its proper divisors (11314166).

12055810 is a wasteful number, since it uses less digits than its factorization.

12055810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92757.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 12055810 is about 3472.1477503125. The cubic root of 12055810 is about 229.2972247060.

The spelling of 12055810 in words is "twelve million, fifty-five thousand, eight hundred ten".