55322313011223 has 4 divisors (see below), whose sum is σ = 73763084014968. Its totient is φ = 36881542007480.

The previous prime is 55322313011209. The next prime is 55322313011227. The reversal of 55322313011223 is 32211031322355.

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

It is a cyclic number.

It is not a de Polignac number, because 55322313011223 - 2⁸ = 55322313010967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55322313011227) 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, 9220385501868 + ... + 9220385501873.

It is an arithmetic number, because the mean of its divisors is an integer number (18440771003742).

Almost surely, 2^{55322313011223} is an apocalyptic number.

55322313011223 is a deficient number, since it is larger than the sum of its proper divisors (18440771003745).

55322313011223 is a wasteful number, since it uses less digits than its factorization.

55322313011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18440771003744.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 55322313011223 its reverse (32211031322355), we get a palindrome (87533344333578).

The spelling of 55322313011223 in words is "fifty-five trillion, three hundred twenty-two billion, three hundred thirteen million, eleven thousand, two hundred twenty-three".