50311009 has 16 divisors (see below), whose sum is σ = 60323328. Its totient is φ = 41055552.

The previous prime is 50311003. The next prime is 50311013. The reversal of 50311009 is 90011305.

It is a cyclic number.

It is not a de Polignac number, because 50311009 - 2²³ = 41922401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50311003) 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, 10107 + ... + 14239.

It is an arithmetic number, because the mean of its divisors is an integer number (3770208).

Almost surely, 2^50311009 is an apocalyptic number.

It is an amenable number.

50311009 is a deficient number, since it is larger than the sum of its proper divisors (10012319).

50311009 is a wasteful number, since it uses less digits than its factorization.

50311009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 50311009 is about 7093.0253770870. The cubic root of 50311009 is about 369.1654161989.

The spelling of 50311009 in words is "fifty million, three hundred eleven thousand, nine".