2856550109 has 12 divisors (see below), whose sum is σ = 3412736604. Its totient is φ = 2382295104.

The previous prime is 2856550097. The next prime is 2856550139. The reversal of 2856550109 is 9010556582.

It can be written as a sum of positive squares in 2 ways, for example, as 1636445209 + 1220104900 = 40453^2 + 34930^2 .

It is not a de Polignac number, because 2856550109 - 2⁸ = 2856549853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856550139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 785984 + ... + 789609.

It is an arithmetic number, because the mean of its divisors is an integer number (284394717).

Almost surely, 2^2856550109 is an apocalyptic number.

It is an amenable number.

2856550109 is a deficient number, since it is larger than the sum of its proper divisors (556186495).

2856550109 is a wasteful number, since it uses less digits than its factorization.

2856550109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575644 (or 1575637 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 41.

The square root of 2856550109 is about 53446.7034437111. The cubic root of 2856550109 is about 1418.8852768757.

The spelling of 2856550109 in words is "two billion, eight hundred fifty-six million, five hundred fifty thousand, one hundred nine".