12055560 has 64 divisors (see below), whose sum is σ = 39458880. Its totient is φ = 2922240.

The previous prime is 12055553. The next prime is 12055577. The reversal of 12055560 is 6555021.

12055560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12055560.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3247 + ... + 5886.

It is an arithmetic number, because the mean of its divisors is an integer number (616545).

Almost surely, 2^12055560 is an apocalyptic number.

12055560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12055560 is an abundant number, since it is smaller than the sum of its proper divisors (27403320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12055560 is a wasteful number, since it uses less digits than its factorization.

12055560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9158 (or 9154 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 12055560 is about 3472.1117493537. Note that the first 3 decimals coincide. The cubic root of 12055560 is about 229.2956397247.

The spelling of 12055560 in words is "twelve million, fifty-five thousand, five hundred sixty".