550500111 has 16 divisors (see below), whose sum is σ = 932064000. Its totient is φ = 314571384.

The previous prime is 550500107. The next prime is 550500131. The reversal of 550500111 is 111005055.

550500111 is a `hidden beast` number, since 5 + 50 + 500 + 111 = 666.

It is not a de Polignac number, because 550500111 - 2² = 550500107 is a prime.

It is a super-2 number, since 2×550500111² = 606100744422024642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550500131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1456161 + ... + 1456538.

It is an arithmetic number, because the mean of its divisors is an integer number (58254000).

Almost surely, 2^550500111 is an apocalyptic number.

550500111 is a deficient number, since it is larger than the sum of its proper divisors (381563889).

550500111 is a wasteful number, since it uses less digits than its factorization.

550500111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912715 (or 2912709 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 550500111 is about 23462.7387787530. The cubic root of 550500111 is about 819.5695296600.

Adding to 550500111 its reverse (111005055), we get a palindrome (661505166).

The spelling of 550500111 in words is "five hundred fifty million, five hundred thousand, one hundred eleven".