55565622243 has 8 divisors (see below), whose sum is σ = 82319440400. Its totient is φ = 37043748144.

The previous prime is 55565622197. The next prime is 55565622293. The reversal of 55565622243 is 34222656555.

55565622243 is a `hidden beast` number, since 5 + 5 + 565 + 62 + 2 + 24 + 3 = 666.

It is not a de Polignac number, because 55565622243 - 2¹⁰ = 55565621219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55565622293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028992978 + ... + 1028993031.

It is an arithmetic number, because the mean of its divisors is an integer number (10289930050).

Almost surely, 2^55565622243 is an apocalyptic number.

55565622243 is a deficient number, since it is larger than the sum of its proper divisors (26753818157).

55565622243 is a wasteful number, since it uses less digits than its factorization.

55565622243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057986018 (or 2057986012 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 45.

The spelling of 55565622243 in words is "fifty-five billion, five hundred sixty-five million, six hundred twenty-two thousand, two hundred forty-three".