8223000505 has 4 divisors (see below), whose sum is σ = 9867600612. Its totient is φ = 6578400400.

The previous prime is 8223000493. The next prime is 8223000559. The reversal of 8223000505 is 5050003228.

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 844018704 + 7378981801 = 29052^2 + 85901^2 .

It is not a de Polignac number, because 8223000505 - 2⁷ = 8223000377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8223000505.

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, 822300046 + ... + 822300055.

It is an arithmetic number, because the mean of its divisors is an integer number (2466900153).

Almost surely, 2^8223000505 is an apocalyptic number.

It is an amenable number.

8223000505 is a deficient number, since it is larger than the sum of its proper divisors (1644600107).

8223000505 is a wasteful number, since it uses less digits than its factorization.

8223000505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644600106.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 8223000505 is about 90680.7614932738. The cubic root of 8223000505 is about 2018.4133298050.

The spelling of 8223000505 in words is "eight billion, two hundred twenty-three million, five hundred five", and thus it is an aban number.