8030505805 has 16 divisors (see below), whose sum is σ = 11014907904. Its totient is φ = 5505811200.

The previous prime is 8030505779. The next prime is 8030505839. The reversal of 8030505805 is 5085050308.

It is not a de Polignac number, because 8030505805 - 2⁵ = 8030505773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307749 + ... + 332821.

It is an arithmetic number, because the mean of its divisors is an integer number (688431744).

Almost surely, 2^8030505805 is an apocalyptic number.

It is an amenable number.

8030505805 is a deficient number, since it is larger than the sum of its proper divisors (2984402099).

8030505805 is a wasteful number, since it uses less digits than its factorization.

8030505805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34236.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 8030505805 is about 89613.0894735808. The cubic root of 8030505805 is about 2002.5389259802.

The spelling of 8030505805 in words is "eight billion, thirty million, five hundred five thousand, eight hundred five".