8805220505 has 4 divisors (see below), whose sum is σ = 10566264612. Its totient is φ = 7044176400.

The previous prime is 8805220477. The next prime is 8805220511. The reversal of 8805220505 is 5050225088.

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 1015569424 + 7789651081 = 31868^2 + 88259^2 .

It is not a de Polignac number, because 8805220505 - 2⁶ = 8805220441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880522046 + ... + 880522055.

It is an arithmetic number, because the mean of its divisors is an integer number (2641566153).

Almost surely, 2^8805220505 is an apocalyptic number.

It is an amenable number.

8805220505 is a deficient number, since it is larger than the sum of its proper divisors (1761044107).

8805220505 is a wasteful number, since it uses less digits than its factorization.

8805220505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761044106.

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 8805220505 is about 93836.1364560583. The cubic root of 8805220505 is about 2064.9684095639.

The spelling of 8805220505 in words is "eight billion, eight hundred five million, two hundred twenty thousand, five hundred five".