12055507 has 4 divisors (see below), whose sum is σ = 12090400. Its totient is φ = 12020616.

The previous prime is 12055493. The next prime is 12055513. The reversal of 12055507 is 70555021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70555021 = 6271 ⋅11251.

It is a cyclic number.

It is not a de Polignac number, because 12055507 - 2¹⁵ = 12022739 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16923 + ... + 17620.

It is an arithmetic number, because the mean of its divisors is an integer number (3022600).

Almost surely, 2^12055507 is an apocalyptic number.

12055507 is a deficient number, since it is larger than the sum of its proper divisors (34893).

12055507 is an equidigital number, since it uses as much as digits as its factorization.

12055507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34892.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 12055507 is about 3472.1041171025. The cubic root of 12055507 is about 229.2953037058.

The spelling of 12055507 in words is "twelve million, fifty-five thousand, five hundred seven".