50500009 has 16 divisors (see below), whose sum is σ = 59031936. Its totient is φ = 42307200.

The previous prime is 50500003. The next prime is 50500057. The reversal of 50500009 is 90000505.

It is a cyclic number.

It is not a de Polignac number, because 50500009 - 2³ = 50500001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50500001) 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, 96669 + ... + 97189.

It is an arithmetic number, because the mean of its divisors is an integer number (3689496).

Almost surely, 2^50500009 is an apocalyptic number.

It is an amenable number.

50500009 is a deficient number, since it is larger than the sum of its proper divisors (8531927).

50500009 is a wasteful number, since it uses less digits than its factorization.

50500009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 50500009 is about 7106.3358350137. The cubic root of 50500009 is about 369.6271115437.

The spelling of 50500009 in words is "fifty million, five hundred thousand, nine".