2805285773 has 2 divisors, whose sum is σ = 2805285774. Its totient is φ = 2805285772.

The previous prime is 2805285737. The next prime is 2805285793. The reversal of 2805285773 is 3775825082.

It is a happy number.

2805285773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (2805285737) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2006771209 + 798514564 = 44797^2 + 28258^2 .

It is a cyclic number.

It is not a de Polignac number, because 2805285773 - 2⁸ = 2805285517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2805285793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402642886 + 1402642887.

It is an arithmetic number, because the mean of its divisors is an integer number (1402642887).

Almost surely, 2^2805285773 is an apocalyptic number.

It is an amenable number.

2805285773 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805285773 is an equidigital number, since it uses as much as digits as its factorization.

2805285773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 47.

The square root of 2805285773 is about 52964.9485320245. The cubic root of 2805285773 is about 1410.3461036930.

The spelling of 2805285773 in words is "two billion, eight hundred five million, two hundred eighty-five thousand, seven hundred seventy-three".