12055851 has 32 divisors (see below), whose sum is σ = 18792000. Its totient is φ = 7628544.

The previous prime is 12055847. The next prime is 12055859. The reversal of 12055851 is 15855021.

It is not a de Polignac number, because 12055851 - 2² = 12055847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12055859) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69601 + ... + 69773.

It is an arithmetic number, because the mean of its divisors is an integer number (587250).

Almost surely, 2^12055851 is an apocalyptic number.

12055851 is a deficient number, since it is larger than the sum of its proper divisors (6736149).

12055851 is a wasteful number, since it uses less digits than its factorization.

12055851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 12055851 is about 3472.1536544341. The cubic root of 12055851 is about 229.2974846409.

It can be divided in two parts, 1205 and 5851, that added together give a square (7056 = 84²).

The spelling of 12055851 in words is "twelve million, fifty-five thousand, eight hundred fifty-one".