12055587 has 8 divisors (see below), whose sum is σ = 16300800. Its totient is φ = 7923720.

The previous prime is 12055577. The next prime is 12055639. The reversal of 12055587 is 78555021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12055587 - 2¹⁵ = 12022819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12055577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28087 + ... + 28512.

It is an arithmetic number, because the mean of its divisors is an integer number (2037600).

Almost surely, 2^12055587 is an apocalyptic number.

12055587 is a deficient number, since it is larger than the sum of its proper divisors (4245213).

12055587 is an equidigital number, since it uses as much as digits as its factorization.

12055587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56673.

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 12055587 is about 3472.1156374752. The cubic root of 12055587 is about 229.2958109037.

The spelling of 12055587 in words is "twelve million, fifty-five thousand, five hundred eighty-seven".