55223040223 has 16 divisors (see below), whose sum is σ = 60018154560. Its totient is φ = 50506412544.

The previous prime is 55223040211. The next prime is 55223040263. The reversal of 55223040223 is 32204032255.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55223040223 - 2¹⁷ = 55222909151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55223040191 and 55223040200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55223040203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6243238 + ... + 6252076.

It is an arithmetic number, because the mean of its divisors is an integer number (3751134660).

Almost surely, 2^55223040223 is an apocalyptic number.

55223040223 is a deficient number, since it is larger than the sum of its proper divisors (4795114337).

55223040223 is a wasteful number, since it uses less digits than its factorization.

55223040223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13218.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 55223040223 its reverse (32204032255), we get a palindrome (87427072478).

The spelling of 55223040223 in words is "fifty-five billion, two hundred twenty-three million, forty thousand, two hundred twenty-three".