550005868186 has 4 divisors (see below), whose sum is σ = 825008802282. Its totient is φ = 275002934092.

The previous prime is 550005868157. The next prime is 550005868219. The reversal of 550005868186 is 681868500055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 681868500055 = 5 ⋅136373700011.

It can be written as a sum of positive squares in only one way, i.e., 436491455625 + 113514412561 = 660675^2 + 336919^2 .

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 as a sum of consecutive naturals, namely, 137501467045 + ... + 137501467048.

Almost surely, 2^550005868186 is an apocalyptic number.

550005868186 is a deficient number, since it is larger than the sum of its proper divisors (275002934096).

550005868186 is a wasteful number, since it uses less digits than its factorization.

550005868186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275002934095.

The product of its (nonzero) digits is 2304000, while the sum is 52.

The spelling of 550005868186 in words is "five hundred fifty billion, five million, eight hundred sixty-eight thousand, one hundred eighty-six".