550005511 has 8 divisors (see below), whose sum is σ = 600421248. Its totient is φ = 499659000.

The previous prime is 550005497. The next prime is 550005517. The reversal of 550005511 is 115500055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550005511 - 2⁹ = 550004999 is a prime.

It is a super-2 number, since 2×550005511² = 605012124260742242, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550005517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76 + ... + 33166.

It is an arithmetic number, because the mean of its divisors is an integer number (75052656).

Almost surely, 2^550005511 is an apocalyptic number.

550005511 is a deficient number, since it is larger than the sum of its proper divisors (50415737).

550005511 is a wasteful number, since it uses less digits than its factorization.

550005511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34613.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 550005511 is about 23452.1962937376. The cubic root of 550005511 is about 819.3240071245.

Adding to 550005511 its reverse (115500055), we get a palindrome (665505566).

The spelling of 550005511 in words is "five hundred fifty million, five thousand, five hundred eleven".