550326009 has 4 divisors (see below), whose sum is σ = 733768016. Its totient is φ = 366884004.

The previous prime is 550325927. The next prime is 550326047. The reversal of 550326009 is 900623055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 550326009 - 2¹² = 550321913 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550326059) 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, 91720999 + ... + 91721004.

It is an arithmetic number, because the mean of its divisors is an integer number (183442004).

Almost surely, 2^550326009 is an apocalyptic number.

It is an amenable number.

550326009 is a deficient number, since it is larger than the sum of its proper divisors (183442007).

550326009 is a wasteful number, since it uses less digits than its factorization.

550326009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183442006.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 550326009 is about 23459.0283046847. The cubic root of 550326009 is about 819.4831211160.

The spelling of 550326009 in words is "five hundred fifty million, three hundred twenty-six thousand, nine".