55223 has 10 divisors (see below), whose sum is σ = 67224. Its totient is φ = 45276.

The previous prime is 55219. The next prime is 55229. The reversal of 55223 is 32255.

It is not a de Polignac number, because 55223 - 2² = 55219 is a prime.

It is a Duffinian number.

Its product of digits (300) is a multiple of the sum of its prime divisors (30).

It is a plaindrome in base 15.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55229) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2390 + ... + 2412.

2⁵⁵²²³ is an apocalyptic number.

55223 is a deficient number, since it is larger than the sum of its proper divisors (12001).

55223 is an frugal number, since it uses more digits than its factorization.

55223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51 (or 30 counting only the distinct ones).

The product of its digits is 300, while the sum is 17.

The square root of 55223 is about 234.9957446423. The cubic root of 55223 is about 38.0808527779.

Adding to 55223 its reverse (32255), we get a palindrome (87478).

It can be divided in two parts, 552 and 23, that added together give a palindrome (575).

The spelling of 55223 in words is "fifty-five thousand, two hundred twenty-three".