2805302993 has 2 divisors, whose sum is σ = 2805302994. Its totient is φ = 2805302992.

The previous prime is 2805302989. The next prime is 2805303041. The reversal of 2805302993 is 3992035082.

2805302993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2797140544 + 8162449 = 52888^2 + 2857^2 .

It is a cyclic number.

It is not a de Polignac number, because 2805302993 - 2² = 2805302989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2805302993.

It is not a weakly prime, because it can be changed into another prime (2805302393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402651496 + 1402651497.

It is an arithmetic number, because the mean of its divisors is an integer number (1402651497).

Almost surely, 2^2805302993 is an apocalyptic number.

It is an amenable number.

2805302993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805302993 is an equidigital number, since it uses as much as digits as its factorization.

2805302993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 2805302993 is about 52965.1110921142. Note that the first 3 decimals coincide. The cubic root of 2805302993 is about 1410.3489894490.

The spelling of 2805302993 in words is "two billion, eight hundred five million, three hundred two thousand, nine hundred ninety-three".