55105204111 has 8 divisors (see below), whose sum is σ = 55936905264. Its totient is φ = 54273774720.

The previous prime is 55105204087. The next prime is 55105204139. The reversal of 55105204111 is 11140250155.

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 55105204111 - 2¹⁷ = 55105073039 is a prime.

It is a super-2 number, since 2×55105204111² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55105204151) 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, 360921 + ... + 490381.

It is an arithmetic number, because the mean of its divisors is an integer number (6992113158).

Almost surely, 2^55105204111 is an apocalyptic number.

55105204111 is a deficient number, since it is larger than the sum of its proper divisors (831701153).

55105204111 is a wasteful number, since it uses less digits than its factorization.

55105204111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135881.

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 55105204111 its reverse (11140250155), we get a palindrome (66245454266).

The spelling of 55105204111 in words is "fifty-five billion, one hundred five million, two hundred four thousand, one hundred eleven".