550055571 has 24 divisors (see below), whose sum is σ = 805167216. Its totient is φ = 332042880.

The previous prime is 550055521. The next prime is 550055573. The reversal of 550055571 is 175550055.

It is not a de Polignac number, because 550055571 - 2²⁹ = 13184659 is a prime.

It is a super-2 number, since 2×550055571² = 605122262376272082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550055573) 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 23 ways as a sum of consecutive naturals, for example, 107041 + ... + 112061.

It is an arithmetic number, because the mean of its divisors is an integer number (33548634).

Almost surely, 2^550055571 is an apocalyptic number.

550055571 is a deficient number, since it is larger than the sum of its proper divisors (255111645).

550055571 is a wasteful number, since it uses less digits than its factorization.

550055571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143 (or 5090 counting only the distinct ones).

The product of its (nonzero) digits is 21875, while the sum is 33.

The square root of 550055571 is about 23453.2635468926. The cubic root of 550055571 is about 819.3488639152.

The spelling of 550055571 in words is "five hundred fifty million, fifty-five thousand, five hundred seventy-one".