550043220113 has 4 divisors (see below), whose sum is σ = 550053364020. Its totient is φ = 550033076208.

The previous prime is 550043220101. The next prime is 550043220121. The reversal of 550043220113 is 311022340055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 430169392129 + 119873827984 = 655873^2 + 346228^2 .

It is a cyclic number.

It is not a de Polignac number, because 550043220113 - 2³⁰ = 548969478289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550043220413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4990178 + ... + 5099211.

It is an arithmetic number, because the mean of its divisors is an integer number (137513341005).

Almost surely, 2^550043220113 is an apocalyptic number.

It is an amenable number.

550043220113 is a deficient number, since it is larger than the sum of its proper divisors (10143907).

550043220113 is a wasteful number, since it uses less digits than its factorization.

550043220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10143906.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 550043220113 its reverse (311022340055), we get a palindrome (861065560168).

The spelling of 550043220113 in words is "five hundred fifty billion, forty-three million, two hundred twenty thousand, one hundred thirteen".