2777555855 has 16 divisors (see below), whose sum is σ = 3392077824. Its totient is φ = 2182928160.

The previous prime is 2777555827. The next prime is 2777555867. The reversal of 2777555855 is 5585557772.

2777555855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2777555855 - 2¹⁰ = 2777554831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2777555855.

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, 86642 + ... + 114288.

It is an arithmetic number, because the mean of its divisors is an integer number (212004864).

Almost surely, 2^2777555855 is an apocalyptic number.

2777555855 is a deficient number, since it is larger than the sum of its proper divisors (614521969).

2777555855 is a wasteful number, since it uses less digits than its factorization.

2777555855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28006.

The product of its digits is 17150000, while the sum is 56.

The square root of 2777555855 is about 52702.5222830938. The cubic root of 2777555855 is about 1405.6836724553.

The spelling of 2777555855 in words is "two billion, seven hundred seventy-seven million, five hundred fifty-five thousand, eight hundred fifty-five".