55550505005055 has 12 divisors (see below), whose sum is σ = 96287542008840. Its totient is φ = 29626936002672.

The previous prime is 55550505005053. The next prime is 55550505005071. The reversal of 55550505005055 is 55050050505555.

It is not a de Polignac number, because 55550505005055 - 2¹ = 55550505005053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1234455666779 = 55550505005055 / (5 + 5 + 5 + 5 + 0 + 5 + 0 + 5 + 0 + 0 + 5 + 0 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 55550505005055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550505005053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617227833345 + ... + 617227833434.

It is an arithmetic number, because the mean of its divisors is an integer number (8023961834070).

Almost surely, 2^{55550505005055} is an apocalyptic number.

55550505005055 is a deficient number, since it is larger than the sum of its proper divisors (40737037003785).

55550505005055 is a wasteful number, since it uses less digits than its factorization.

55550505005055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234455666790 (or 1234455666787 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The spelling of 55550505005055 in words is "fifty-five trillion, five hundred fifty billion, five hundred five million, five thousand, fifty-five".