2805765056 has 28 divisors (see below), whose sum is σ = 5718172968. Its totient is φ = 1364965632.

The previous prime is 2805765047. The next prime is 2805765059. The reversal of 2805765056 is 6505675082.

It is a junction number, because it is equal to n+sod(n) for n = 2805764998 and 2805765016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805765059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590066 + ... + 594801.

Almost surely, 2^2805765056 is an apocalyptic number.

It is an amenable number.

2805765056 is an abundant number, since it is smaller than the sum of its proper divisors (2912407912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2805765056 is a wasteful number, since it uses less digits than its factorization.

2805765056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184916 (or 1184906 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 44.

The square root of 2805765056 is about 52969.4728688138. The cubic root of 2805765056 is about 1410.4264183174.

The spelling of 2805765056 in words is "two billion, eight hundred five million, seven hundred sixty-five thousand, fifty-six".