55042030222 has 64 divisors (see below), whose sum is σ = 90398343168. Its totient is φ = 25078464000.

The previous prime is 55042030187. The next prime is 55042030237. The reversal of 55042030222 is 22203024055.

It is a happy number.

It is a super-2 number, since 2×55042030222² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8718447 + ... + 8724757.

It is an arithmetic number, because the mean of its divisors is an integer number (1412474112).

Almost surely, 2^55042030222 is an apocalyptic number.

55042030222 is a deficient number, since it is larger than the sum of its proper divisors (35356312946).

55042030222 is a wasteful number, since it uses less digits than its factorization.

55042030222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505.

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 55042030222 its reverse (22203024055), we get a palindrome (77245054277).

The spelling of 55042030222 in words is "fifty-five billion, forty-two million, thirty thousand, two hundred twenty-two".