2855611 has 8 divisors (see below), whose sum is σ = 3250944. Its totient is φ = 2482920.

The previous prime is 2855603. The next prime is 2855617. The reversal of 2855611 is 1165582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2855611 - 2³ = 2855603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2855611.

It is not an unprimeable number, because it can be changed into a prime (2855617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5391 + ... + 5896.

It is an arithmetic number, because the mean of its divisors is an integer number (406368).

2^2855611 is an apocalyptic number.

2855611 is a deficient number, since it is larger than the sum of its proper divisors (395333).

2855611 is a wasteful number, since it uses less digits than its factorization.

2855611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11321.

The product of its digits is 2400, while the sum is 28.

The square root of 2855611 is about 1689.8553192507. The cubic root of 2855611 is about 141.8729770650.

The spelling of 2855611 in words is "two million, eight hundred fifty-five thousand, six hundred eleven".