550111201 has 4 divisors (see below), whose sum is σ = 553615252. Its totient is φ = 546607152.

The previous prime is 550111183. The next prime is 550111229. The reversal of 550111201 is 102111055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 376398801 + 173712400 = 19401^2 + 13180^2 .

It is a cyclic number.

It is not a de Polignac number, because 550111201 - 2⁹ = 550110689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550111231) 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, 1751790 + ... + 1752103.

It is an arithmetic number, because the mean of its divisors is an integer number (138403813).

Almost surely, 2^550111201 is an apocalyptic number.

It is an amenable number.

550111201 is a deficient number, since it is larger than the sum of its proper divisors (3504051).

550111201 is a wasteful number, since it uses less digits than its factorization.

550111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504050.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 550111201 is about 23454.4494925803. The cubic root of 550111201 is about 819.3764846643.

Adding to 550111201 its reverse (102111055), we get a palindrome (652222256).

The spelling of 550111201 in words is "five hundred fifty million, one hundred eleven thousand, two hundred one".