505056105556 has 12 divisors (see below), whose sum is σ = 883945023892. Its totient is φ = 252500384448.

The previous prime is 505056105551. The next prime is 505056105557. The reversal of 505056105556 is 655501650505.

It can be written as a sum of positive squares in 2 ways, for example, as 435117013956 + 69939091600 = 659634^2 + 264460^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505056105551) 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 3 ways as a sum of consecutive naturals, for example, 6875985 + ... + 6949048.

Almost surely, 2^505056105556 is an apocalyptic number.

It is an amenable number.

505056105556 is a deficient number, since it is larger than the sum of its proper divisors (378888918336).

505056105556 is a wasteful number, since it uses less digits than its factorization.

505056105556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13834170 (or 13834168 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 505056105556 in words is "five hundred five billion, fifty-six million, one hundred five thousand, five hundred fifty-six".