8057808505 has 4 divisors (see below), whose sum is σ = 9669370212. Its totient is φ = 6446246800.

The previous prime is 8057808503. The next prime is 8057808511. The reversal of 8057808505 is 5058087508.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1023296121 + 7034512384 = 31989^2 + 83872^2 .

It is not a de Polignac number, because 8057808505 - 2¹ = 8057808503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8057808503) 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, 805780846 + ... + 805780855.

It is an arithmetic number, because the mean of its divisors is an integer number (2417342553).

Almost surely, 2^8057808505 is an apocalyptic number.

It is an amenable number.

8057808505 is a deficient number, since it is larger than the sum of its proper divisors (1611561707).

8057808505 is a wasteful number, since it uses less digits than its factorization.

8057808505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611561706.

The product of its (nonzero) digits is 448000, while the sum is 46.

The square root of 8057808505 is about 89765.2967744217. The cubic root of 8057808505 is about 2004.8058182227.

The spelling of 8057808505 in words is "eight billion, fifty-seven million, eight hundred eight thousand, five hundred five".