555055555056 has 80 divisors (see below), whose sum is σ = 1559273798304. Its totient is φ = 169428713472.

The previous prime is 555055555051. The next prime is 555055555081. The reversal of 555055555056 is 650555550555.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555055555051) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9161905 + ... + 9222288.

Almost surely, 2^555055555056 is an apocalyptic number.

It is an amenable number.

555055555056 is an abundant number, since it is smaller than the sum of its proper divisors (1004218243248).

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

555055555056 is a wasteful number, since it uses less digits than its factorization.

555055555056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18384258 (or 18384252 counting only the distinct ones).

The product of its (nonzero) digits is 11718750, while the sum is 51.

It can be divided in two parts, 555055 and 555056, that added together give a palindrome (1110111).

The spelling of 555055555056 in words is "five hundred fifty-five billion, fifty-five million, five hundred fifty-five thousand, fifty-six".