2855909855 has 16 divisors (see below), whose sum is σ = 3611865600. Its totient is φ = 2161838880.

The previous prime is 2855909831. The next prime is 2855909857. The reversal of 2855909855 is 5589095582.

It is not a de Polignac number, because 2855909855 - 2¹⁰ = 2855908831 is a prime.

It is a super-2 number, since 2×2855909855² = 16312442199772242050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2855909855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855909857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61790 + ... + 97620.

It is an arithmetic number, because the mean of its divisors is an integer number (225741600).

Almost surely, 2^2855909855 is an apocalyptic number.

2855909855 is a deficient number, since it is larger than the sum of its proper divisors (755955745).

2855909855 is a wasteful number, since it uses less digits than its factorization.

2855909855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36694.

The product of its (nonzero) digits is 6480000, while the sum is 56.

The square root of 2855909855 is about 53440.7134589350. The cubic root of 2855909855 is about 1418.7792614819.

The spelling of 2855909855 in words is "two billion, eight hundred fifty-five million, nine hundred nine thousand, eight hundred fifty-five".