55220056105 has 8 divisors (see below), whose sum is σ = 66293131464. Its totient is φ = 44156668800.

The previous prime is 55220056051. The next prime is 55220056121. The reversal of 55220056105 is 50165002255.

It can be written as a sum of positive squares in 4 ways, for example, as 22671927184 + 32548128921 = 150572^2 + 180411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55220056105 - 2¹⁹ = 55219531817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2409466 + ... + 2432275.

It is an arithmetic number, because the mean of its divisors is an integer number (8286641433).

Almost surely, 2^55220056105 is an apocalyptic number.

It is an amenable number.

55220056105 is a deficient number, since it is larger than the sum of its proper divisors (11073075359).

55220056105 is a wasteful number, since it uses less digits than its factorization.

55220056105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844027.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 55220056105 in words is "fifty-five billion, two hundred twenty million, fifty-six thousand, one hundred five".