55443922 has 8 divisors (see below), whose sum is σ = 83696076. Its totient is φ = 27545232.

The previous prime is 55443901. The next prime is 55443923. The reversal of 55443922 is 22934455.

It can be written as a sum of positive squares in 2 ways, for example, as 53597041 + 1846881 = 7321^2 + 1359^2 .

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 (55443923) 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, 87973 + ... + 88600.

Almost surely, 2^55443922 is an apocalyptic number.

55443922 is a deficient number, since it is larger than the sum of its proper divisors (28252154).

55443922 is a wasteful number, since it uses less digits than its factorization.

55443922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176732.

The product of its digits is 43200, while the sum is 34.

The square root of 55443922 is about 7446.0675527422. The cubic root of 55443922 is about 381.3156657653.

It can be divided in two parts, 55443 and 922, that added together give a palindrome (56365).

The spelling of 55443922 in words is "fifty-five million, four hundred forty-three thousand, nine hundred twenty-two".