2186687055 has 16 divisors (see below), whose sum is σ = 3998513664. Its totient is φ = 999628320.

The previous prime is 2186687047. The next prime is 2186687077. The reversal of 2186687055 is 5507866812.

It is not a de Polignac number, because 2186687055 - 2³ = 2186687047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2186686995 and 2186687013.

It is a congruent 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, 10412691 + ... + 10412900.

It is an arithmetic number, because the mean of its divisors is an integer number (249907104).

Almost surely, 2^2186687055 is an apocalyptic number.

2186687055 is a deficient number, since it is larger than the sum of its proper divisors (1811826609).

2186687055 is a wasteful number, since it uses less digits than its factorization.

2186687055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20825606.

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 2186687055 is about 46762.0257794720. The cubic root of 2186687055 is about 1297.9626974575.

The spelling of 2186687055 in words is "two billion, one hundred eighty-six million, six hundred eighty-seven thousand, fifty-five".