550111442 has 4 divisors (see below), whose sum is σ = 825167166. Its totient is φ = 275055720.

The previous prime is 550111439. The next prime is 550111477. The reversal of 550111442 is 244111055.

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

It can be written as a sum of positive squares in only one way, i.e., 539214841 + 10896601 = 23221^2 + 3301^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137527859 + ... + 137527862.

Almost surely, 2^550111442 is an apocalyptic number.

550111442 is a deficient number, since it is larger than the sum of its proper divisors (275055724).

550111442 is a wasteful number, since it uses less digits than its factorization.

550111442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275055723.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 550111442 is about 23454.4546301977. The cubic root of 550111442 is about 819.3766043187.

Adding to 550111442 its reverse (244111055), we get a palindrome (794222497).

The spelling of 550111442 in words is "five hundred fifty million, one hundred eleven thousand, four hundred forty-two".