550227511 has 4 divisors (see below), whose sum is σ = 553267624. Its totient is φ = 547187400.

The previous prime is 550227487. The next prime is 550227523. The reversal of 550227511 is 115722055.

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 550227511 - 2¹⁷ = 550096439 is a prime.

It is a super-2 number, since 2×550227511² = 605500627722510242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550227511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550227571) 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, 1519785 + ... + 1520146.

It is an arithmetic number, because the mean of its divisors is an integer number (138316906).

Almost surely, 2^550227511 is an apocalyptic number.

550227511 is a deficient number, since it is larger than the sum of its proper divisors (3040113).

550227511 is a wasteful number, since it uses less digits than its factorization.

550227511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040112.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 550227511 is about 23456.9288484234. The cubic root of 550227511 is about 819.4342275128.

Adding to 550227511 its reverse (115722055), we get a palindrome (665949566).

The spelling of 550227511 in words is "five hundred fifty million, two hundred twenty-seven thousand, five hundred eleven".