855285804 has 60 divisors (see below), whose sum is σ = 2278118304. Its totient is φ = 279710496.

The previous prime is 855285803. The next prime is 855285811. The reversal of 855285804 is 408582558.

It is a self number, because there is not a number n which added to its sum of digits gives 855285804.

It is not an unprimeable number, because it can be changed into a prime (855285803) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7732 + ... + 42075.

Almost surely, 2^855285804 is an apocalyptic number.

It is an amenable number.

855285804 is an abundant number, since it is smaller than the sum of its proper divisors (1422832500).

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

855285804 is a wasteful number, since it uses less digits than its factorization.

855285804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49876 (or 49865 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 45.

The square root of 855285804 is about 29245.2697713664. The cubic root of 855285804 is about 949.2277395235.

The spelling of 855285804 in words is "eight hundred fifty-five million, two hundred eighty-five thousand, eight hundred four".