55223230 has 16 divisors (see below), whose sum is σ = 103724064. Its totient is φ = 21128800.

The previous prime is 55223219. The next prime is 55223249. The reversal of 55223230 is 3232255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119821 + ... + 120280.

It is an arithmetic number, because the mean of its divisors is an integer number (6482754).

Almost surely, 2^55223230 is an apocalyptic number.

55223230 is a deficient number, since it is larger than the sum of its proper divisors (48500834).

55223230 is a wasteful number, since it uses less digits than its factorization.

55223230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240131.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 55223230 is about 7431.2334104104. The cubic root of 55223230 is about 380.8090564588.

Adding to 55223230 its reverse (3232255), we get a palindrome (58455485).

The spelling of 55223230 in words is "fifty-five million, two hundred twenty-three thousand, two hundred thirty".