550816571 has 4 divisors (see below), whose sum is σ = 551291352. Its totient is φ = 550341792.

The previous prime is 550816561. The next prime is 550816573. The reversal of 550816571 is 175618055.

It is a happy number.

550816571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 550816571 - 2¹⁰ = 550815547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550816573) 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, 235646 + ... + 237971.

It is an arithmetic number, because the mean of its divisors is an integer number (137822838).

Almost surely, 2^550816571 is an apocalyptic number.

550816571 is a deficient number, since it is larger than the sum of its proper divisors (474781).

550816571 is a wasteful number, since it uses less digits than its factorization.

550816571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474780.

The product of its (nonzero) digits is 42000, while the sum is 38.

The square root of 550816571 is about 23469.4816943195. The cubic root of 550816571 is about 819.7265452448.

The spelling of 550816571 in words is "five hundred fifty million, eight hundred sixteen thousand, five hundred seventy-one".