550066571 has 4 divisors (see below), whose sum is σ = 550494600. Its totient is φ = 549638544.

The previous prime is 550066523. The next prime is 550066631. The reversal of 550066571 is 175660055.

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

It is a cyclic number.

It is not a de Polignac number, because 550066571 - 2²² = 545872267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550066271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212081 + ... + 214658.

It is an arithmetic number, because the mean of its divisors is an integer number (137623650).

Almost surely, 2^550066571 is an apocalyptic number.

550066571 is a deficient number, since it is larger than the sum of its proper divisors (428029).

550066571 is a wasteful number, since it uses less digits than its factorization.

550066571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428028.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 550066571 is about 23453.4980546613. The cubic root of 550066571 is about 819.3543256527.

The spelling of 550066571 in words is "five hundred fifty million, sixty-six thousand, five hundred seventy-one".