55222330 has 8 divisors (see below), whose sum is σ = 99400212. Its totient is φ = 22088928.

The previous prime is 55222327. The next prime is 55222339. The reversal of 55222330 is 3322255.

It can be written as a sum of positive squares in 2 ways, for example, as 55160329 + 62001 = 7427^2 + 249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (55222339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2761107 + ... + 2761126.

Almost surely, 2^55222330 is an apocalyptic number.

55222330 is a deficient number, since it is larger than the sum of its proper divisors (44177882).

55222330 is a wasteful number, since it uses less digits than its factorization.

55222330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5522240.

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

The square root of 55222330 is about 7431.1728549402. The cubic root of 55222330 is about 380.8069877037.

Adding to 55222330 its reverse (3322255), we get a palindrome (58544585).

The spelling of 55222330 in words is "fifty-five million, two hundred twenty-two thousand, three hundred thirty".