4005505 has 12 divisors (see below), whose sum is σ = 5591700. Its totient is φ = 2746464.

The previous prime is 4005499. The next prime is 4005527. The reversal of 4005505 is 5055004.

It is a happy number.

4005505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1016064 + 2989441 = 1008^2 + 1729^2 .

It is not a de Polignac number, because 4005505 - 2⁷ = 4005377 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7930 + ... + 8419.

It is an arithmetic number, because the mean of its divisors is an integer number (465975).

Almost surely, 2^4005505 is an apocalyptic number.

It is an amenable number.

4005505 is a deficient number, since it is larger than the sum of its proper divisors (1586195).

4005505 is a wasteful number, since it uses less digits than its factorization.

4005505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16368 (or 16361 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 4005505 is about 2001.3757768095. The cubic root of 4005505 is about 158.8128938385.

The spelling of 4005505 in words is "four million, five thousand, five hundred five".