2004505065 has 24 divisors (see below), whose sum is σ = 3475517760. Its totient is φ = 1068748704.

The previous prime is 2004505057. The next prime is 2004505067. The reversal of 2004505065 is 5605054002.

2004505065 is a `hidden beast` number, since 200 + 450 + 5 + 0 + 6 + 5 = 666.

It is not a de Polignac number, because 2004505065 - 2³ = 2004505057 is a prime.

It is a super-2 number, since 2×2004505065² = 8036081111221308450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2004505067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 283564 + ... + 290546.

It is an arithmetic number, because the mean of its divisors is an integer number (144813240).

Almost surely, 2^2004505065 is an apocalyptic number.

It is an amenable number.

2004505065 is a deficient number, since it is larger than the sum of its proper divisors (1471012695).

2004505065 is a wasteful number, since it uses less digits than its factorization.

2004505065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13373 (or 13370 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2004505065 is about 44771.6993758334. The cubic root of 2004505065 is about 1260.8663448513.

Adding to 2004505065 its reverse (5605054002), we get a palindrome (7609559067).

The spelling of 2004505065 in words is "two billion, four million, five hundred five thousand, sixty-five".