2065884305 has 8 divisors (see below), whose sum is σ = 2513021352. Its totient is φ = 1630067328.

The previous prime is 2065884283. The next prime is 2065884323. The reversal of 2065884305 is 5034885602.

It is a Cunningham number, because it is equal to 45452²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 743761984 + 1322122321 = 27272^2 + 36361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2065884305 - 2⁶ = 2065884241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2829614 + ... + 2830343.

It is an arithmetic number, because the mean of its divisors is an integer number (314127669).

Almost surely, 2^2065884305 is an apocalyptic number.

It is an amenable number.

2065884305 is a deficient number, since it is larger than the sum of its proper divisors (447137047).

2065884305 is an equidigital number, since it uses as much as digits as its factorization.

2065884305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5660035.

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 2065884305 is about 45452.0000110006. Note that the first 4 decimals coincide. The cubic root of 2065884305 is about 1273.6066912103.

The spelling of 2065884305 in words is "two billion, sixty-five million, eight hundred eighty-four thousand, three hundred five".