8220287265 has 16 divisors (see below), whose sum is σ = 13268855808. Its totient is φ = 4345354496.

The previous prime is 8220287261. The next prime is 8220287291. The reversal of 8220287265 is 5627820228.

It is a cyclic number.

It is not a de Polignac number, because 8220287265 - 2² = 8220287261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8220287261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2423169 + ... + 2426558.

It is an arithmetic number, because the mean of its divisors is an integer number (829303488).

Almost surely, 2^8220287265 is an apocalyptic number.

It is an amenable number.

8220287265 is a deficient number, since it is larger than the sum of its proper divisors (5048568543).

8220287265 is a wasteful number, since it uses less digits than its factorization.

8220287265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4849848.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 8220287265 is about 90665.7998641163. The cubic root of 8220287265 is about 2018.1913085683.

The spelling of 8220287265 in words is "eight billion, two hundred twenty million, two hundred eighty-seven thousand, two hundred sixty-five".