55111000556105 has 8 divisors (see below), whose sum is σ = 71220369949512. Its totient is φ = 40697354256768.

The previous prime is 55111000556021. The next prime is 55111000556107. The reversal of 55111000556105 is 50165500011155.

It can be written as a sum of positive squares in 4 ways, for example, as 29250918841 + 55081749637264 = 171029^2 + 7421708^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55111000556105 - 2²² = 55110996361801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55111000556107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423930773444 + ... + 423930773573.

It is an arithmetic number, because the mean of its divisors is an integer number (8902546243689).

Almost surely, 2^{55111000556105} is an apocalyptic number.

It is an amenable number.

55111000556105 is a deficient number, since it is larger than the sum of its proper divisors (16109369393407).

55111000556105 is a wasteful number, since it uses less digits than its factorization.

55111000556105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847861547035.

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 55111000556105 in words is "fifty-five trillion, one hundred eleven billion, five hundred fifty-six thousand, one hundred five".