50318009 has 4 divisors (see below), whose sum is σ = 57506304. Its totient is φ = 43129716.

The previous prime is 50317979. The next prime is 50318027. The reversal of 50318009 is 90081305.

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 50318009 - 2²⁰ = 49269433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50318309) 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, 3594137 + ... + 3594150.

It is an arithmetic number, because the mean of its divisors is an integer number (14376576).

Almost surely, 2^50318009 is an apocalyptic number.

It is an amenable number.

50318009 is a deficient number, since it is larger than the sum of its proper divisors (7188295).

50318009 is an equidigital number, since it uses as much as digits as its factorization.

50318009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188294.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 50318009 is about 7093.5188023998. The cubic root of 50318009 is about 369.1825366272.

The spelling of 50318009 in words is "fifty million, three hundred eighteen thousand, nine".