55055555005554 has 48 divisors (see below), whose sum is σ = 125580485066400. Its totient is φ = 17383862314368.

The previous prime is 55055555005543. The next prime is 55055555005579. The reversal of 55055555005554 is 45550055555055.

It is a super-2 number, since 2×55055555005554² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55055555005554.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6899944 + ... + 12558675.

It is an arithmetic number, because the mean of its divisors is an integer number (2616260105550).

Almost surely, 2^{55055555005554} is an apocalyptic number.

55055555005554 is an abundant number, since it is smaller than the sum of its proper divisors (70524930060846).

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

55055555005554 is a wasteful number, since it uses less digits than its factorization.

55055555005554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19466919 (or 19466916 counting only the distinct ones).

The product of its (nonzero) digits is 39062500, while the sum is 54.

The spelling of 55055555005554 in words is "fifty-five trillion, fifty-five billion, five hundred fifty-five million, five thousand, five hundred fifty-four".