5555505050556 has 12 divisors (see below), whose sum is σ = 12962845117992. Its totient is φ = 1851835016848.

The previous prime is 5555505050551. The next prime is 5555505050569. The reversal of 5555505050556 is 6550505055555.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 5555505050499 and 5555505050508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555505050551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231479377095 + ... + 231479377118.

It is an arithmetic number, because the mean of its divisors is an integer number (1080237093166).

Almost surely, 2^{5555505050556} is an apocalyptic number.

It is an amenable number.

5555505050556 is an abundant number, since it is smaller than the sum of its proper divisors (7407340067436).

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

5555505050556 is a wasteful number, since it uses less digits than its factorization.

5555505050556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462958754220 (or 462958754218 counting only the distinct ones).

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

The spelling of 5555505050556 in words is "five trillion, five hundred fifty-five billion, five hundred five million, fifty thousand, five hundred fifty-six".