2056882865 has 16 divisors (see below), whose sum is σ = 2493662160. Its totient is φ = 1628605440.

The previous prime is 2056882813. The next prime is 2056882879. The reversal of 2056882865 is 5682886502.

It can be written as a sum of positive squares in 8 ways, for example, as 274101136 + 1782781729 = 16556^2 + 42223^2 .

It is not a de Polignac number, because 2056882865 - 2⁸ = 2056882609 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718517 + ... + 721373.

It is an arithmetic number, because the mean of its divisors is an integer number (155853885).

Almost surely, 2^2056882865 is an apocalyptic number.

It is an amenable number.

2056882865 is a deficient number, since it is larger than the sum of its proper divisors (436779295).

2056882865 is a wasteful number, since it uses less digits than its factorization.

2056882865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4292.

The product of its (nonzero) digits is 1843200, while the sum is 50.

The square root of 2056882865 is about 45352.8705265720. The cubic root of 2056882865 is about 1271.7542181083.

The spelling of 2056882865 in words is "two billion, fifty-six million, eight hundred eighty-two thousand, eight hundred sixty-five".