550503886 has 4 divisors (see below), whose sum is σ = 825755832. Its totient is φ = 275251942.

The previous prime is 550503881. The next prime is 550503907. The reversal of 550503886 is 688305055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 688305055 = 5 ⋅137661011.

It is a super-2 number, since 2×550503886² = 606109057002201992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550503881) 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 as a sum of consecutive naturals, namely, 137625970 + ... + 137625973.

It is an arithmetic number, because the mean of its divisors is an integer number (206438958).

Almost surely, 2^550503886 is an apocalyptic number.

550503886 is a deficient number, since it is larger than the sum of its proper divisors (275251946).

550503886 is a wasteful number, since it uses less digits than its factorization.

550503886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275251945.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 550503886 is about 23462.8192253190. The cubic root of 550503886 is about 819.5714030280.

The spelling of 550503886 in words is "five hundred fifty million, five hundred three thousand, eight hundred eighty-six".