505555611056 has 40 divisors (see below), whose sum is σ = 985168445184. Its totient is φ = 251320010240.

The previous prime is 505555610977. The next prime is 505555611059. The reversal of 505555611056 is 650116555505.

It is a junction number, because it is equal to n+sod(n) for n = 505555610998 and 505555611016.

It is not an unprimeable number, because it can be changed into a prime (505555611059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5802890 + ... + 5889366.

Almost surely, 2^505555611056 is an apocalyptic number.

It is an amenable number.

505555611056 is a deficient number, since it is larger than the sum of its proper divisors (479612834128).

505555611056 is a wasteful number, since it uses less digits than its factorization.

505555611056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88589 (or 88583 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 44.

The spelling of 505555611056 in words is "five hundred five billion, five hundred fifty-five million, six hundred eleven thousand, fifty-six".