2206624985 has 4 divisors (see below), whose sum is σ = 2647949988. Its totient is φ = 1765299984.

The previous prime is 2206624951. The next prime is 2206625017. The reversal of 2206624985 is 5894266022.

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 403688464 + 1802936521 = 20092^2 + 42461^2 .

It is a cyclic number.

It is not a de Polignac number, because 2206624985 - 2⁸ = 2206624729 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, 220662494 + ... + 220662503.

It is an arithmetic number, because the mean of its divisors is an integer number (661987497).

Almost surely, 2^2206624985 is an apocalyptic number.

It is an amenable number.

2206624985 is a deficient number, since it is larger than the sum of its proper divisors (441325003).

2206624985 is an equidigital number, since it uses as much as digits as its factorization.

2206624985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441325002.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 2206624985 is about 46974.7270880843. The cubic root of 2206624985 is about 1301.8956535559.

The spelling of 2206624985 in words is "two billion, two hundred six million, six hundred twenty-four thousand, nine hundred eighty-five".