2005004999 has 4 divisors (see below), whose sum is σ = 2042835336. Its totient is φ = 1967174664.

The previous prime is 2005004993. The next prime is 2005005047. The reversal of 2005004999 is 9994005002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9994005002 = 2 ⋅4997002501.

It is a cyclic number.

It is not a de Polignac number, because 2005004999 - 2⁴ = 2005004983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005004993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18915089 + ... + 18915194.

It is an arithmetic number, because the mean of its divisors is an integer number (510708834).

Almost surely, 2^2005004999 is an apocalyptic number.

2005004999 is a deficient number, since it is larger than the sum of its proper divisors (37830337).

2005004999 is an equidigital number, since it uses as much as digits as its factorization.

2005004999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37830336.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 2005004999 is about 44777.2821752281. The cubic root of 2005004999 is about 1260.9711583486.

The spelling of 2005004999 in words is "two billion, five million, four thousand, nine hundred ninety-nine".