55244223 has 24 divisors (see below), whose sum is σ = 82869696. Its totient is φ = 35438400.

The previous prime is 55244221. The next prime is 55244227. The reversal of 55244223 is 32244255.

It is a happy number.

It is not a de Polignac number, because 55244223 - 2¹ = 55244221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55244221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24733 + ... + 26873.

It is an arithmetic number, because the mean of its divisors is an integer number (3452904).

Almost surely, 2^55244223 is an apocalyptic number.

55244223 is a deficient number, since it is larger than the sum of its proper divisors (27625473).

55244223 is a wasteful number, since it uses less digits than its factorization.

55244223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255 (or 2252 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 55244223 is about 7432.6457604274. The cubic root of 55244223 is about 380.8573049448.

Adding to 55244223 its reverse (32244255), we get a palindrome (87488478).

The spelling of 55244223 in words is "fifty-five million, two hundred forty-four thousand, two hundred twenty-three".