2855787256 has 32 divisors (see below), whose sum is σ = 6131628000. Its totient is φ = 1221492096.

The previous prime is 2855787223. The next prime is 2855787281. The reversal of 2855787256 is 6527875582.

It is a junction number, because it is equal to n+sod(n) for n = 2855787197 and 2855787206.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21591 + ... + 78598.

It is an arithmetic number, because the mean of its divisors is an integer number (191613375).

Almost surely, 2^2855787256 is an apocalyptic number.

It is an amenable number.

2855787256 is an abundant number, since it is smaller than the sum of its proper divisors (3275840744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2855787256 is a wasteful number, since it uses less digits than its factorization.

2855787256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100711 (or 100707 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 55.

The square root of 2855787256 is about 53439.5663904564. The cubic root of 2855787256 is about 1418.7589593229.

The spelling of 2855787256 in words is "two billion, eight hundred fifty-five million, seven hundred eighty-seven thousand, two hundred fifty-six".