55424213223 has 8 divisors (see below), whose sum is σ = 77111948928. Its totient is φ = 35342976504.

The previous prime is 55424213209. The next prime is 55424213227. The reversal of 55424213223 is 32231242455.

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

It is not a de Polignac number, because 55424213223 - 2¹⁶ = 55424147687 is a prime.

It is a super-2 number, since 2×55424213223² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55424213227) by changing a digit.

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, 401624665 + ... + 401624802.

It is an arithmetic number, because the mean of its divisors is an integer number (9638993616).

Almost surely, 2^55424213223 is an apocalyptic number.

55424213223 is a deficient number, since it is larger than the sum of its proper divisors (21687735705).

55424213223 is a wasteful number, since it uses less digits than its factorization.

55424213223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803249493.

The product of its digits is 57600, while the sum is 33.

Adding to 55424213223 its reverse (32231242455), we get a palindrome (87655455678).

The spelling of 55424213223 in words is "fifty-five billion, four hundred twenty-four million, two hundred thirteen thousand, two hundred twenty-three".