804556505853 has 6 divisors (see below), whose sum is σ = 1162137175134. Its totient is φ = 536371003896.

The previous prime is 804556505747. The next prime is 804556505897. The reversal of 804556505853 is 358505655408.

804556505853 is a `hidden beast` number, since 8 + 0 + 4 + 5 + 5 + 6 + 50 + 585 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 467039660409 + 337516845444 = 683403^2 + 580962^2 .

It is not a de Polignac number, because 804556505853 - 2⁹ = 804556505341 is a prime.

It is a super-2 number, since 2×804556505853² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 804556505853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804556505353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44697583650 + ... + 44697583667.

It is an arithmetic number, because the mean of its divisors is an integer number (193689529189).

Almost surely, 2^804556505853 is an apocalyptic number.

It is an amenable number.

804556505853 is a deficient number, since it is larger than the sum of its proper divisors (357580669281).

804556505853 is a wasteful number, since it uses less digits than its factorization.

804556505853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89395167323 (or 89395167320 counting only the distinct ones).

The product of its (nonzero) digits is 14400000, while the sum is 54.

The spelling of 804556505853 in words is "eight hundred four billion, five hundred fifty-six million, five hundred five thousand, eight hundred fifty-three".