550434811 has 4 divisors (see below), whose sum is σ = 550583352. Its totient is φ = 550286272.

The previous prime is 550434809. The next prime is 550434847. The reversal of 550434811 is 118434055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118434055 = 5 ⋅23686811.

It is a cyclic number.

It is not a de Polignac number, because 550434811 - 2¹ = 550434809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550432811) 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, 68566 + ... + 76171.

It is an arithmetic number, because the mean of its divisors is an integer number (137645838).

Almost surely, 2^550434811 is an apocalyptic number.

550434811 is a deficient number, since it is larger than the sum of its proper divisors (148541).

550434811 is a wasteful number, since it uses less digits than its factorization.

550434811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148540.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 550434811 is about 23461.3471693336. The cubic root of 550434811 is about 819.5371227598.

Adding to 550434811 its reverse (118434055), we get a palindrome (668868866).

The spelling of 550434811 in words is "five hundred fifty million, four hundred thirty-four thousand, eight hundred eleven".