55338517855 has 4 divisors (see below), whose sum is σ = 66406221432. Its totient is φ = 44270814280.

The previous prime is 55338517853. The next prime is 55338517877. The reversal of 55338517855 is 55871583355.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55338517855 - 2¹ = 55338517853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55338517796 and 55338517805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55338517853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5533851781 + ... + 5533851790.

It is an arithmetic number, because the mean of its divisors is an integer number (16601555358).

Almost surely, 2^55338517855 is an apocalyptic number.

55338517855 is a deficient number, since it is larger than the sum of its proper divisors (11067703577).

55338517855 is a wasteful number, since it uses less digits than its factorization.

55338517855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11067703576.

The product of its digits is 12600000, while the sum is 55.

The spelling of 55338517855 in words is "fifty-five billion, three hundred thirty-eight million, five hundred seventeen thousand, eight hundred fifty-five".