506055009 has 8 divisors (see below), whose sum is σ = 675398592. Its totient is φ = 337040720.

The previous prime is 506055007. The next prime is 506055037. The reversal of 506055009 is 900550605.

It is a happy number.

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 506055009 - 2¹ = 506055007 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (506055007) 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, 78714 + ... + 84899.

It is an arithmetic number, because the mean of its divisors is an integer number (84424824).

Almost surely, 2^506055009 is an apocalyptic number.

It is an amenable number.

506055009 is a deficient number, since it is larger than the sum of its proper divisors (169343583).

506055009 is a wasteful number, since it uses less digits than its factorization.

506055009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164647.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 506055009 is about 22495.6664493409. Note that the first 3 decimals coincide. The cubic root of 506055009 is about 796.8915883852.

The spelling of 506055009 in words is "five hundred six million, fifty-five thousand, nine".