55043998 has 8 divisors (see below), whose sum is σ = 84124008. Its totient is φ = 27002664.

The previous prime is 55043993. The next prime is 55044029. The reversal of 55043998 is 89934055.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55043993) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 259536 + ... + 259747.

It is an arithmetic number, because the mean of its divisors is an integer number (10515501).

Almost surely, 2^55043998 is an apocalyptic number.

55043998 is a deficient number, since it is larger than the sum of its proper divisors (29080010).

55043998 is a wasteful number, since it uses less digits than its factorization.

55043998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519338.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 55043998 is about 7419.1642386458. The cubic root of 55043998 is about 380.3966265034.

The spelling of 55043998 in words is "fifty-five million, forty-three thousand, nine hundred ninety-eight".