50038509 has 4 divisors (see below), whose sum is σ = 66718016. Its totient is φ = 33359004.

The previous prime is 50038493. The next prime is 50038523. The reversal of 50038509 is 90583005.

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 50038509 - 2⁴ = 50038493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50038579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8339749 + ... + 8339754.

It is an arithmetic number, because the mean of its divisors is an integer number (16679504).

Almost surely, 2^50038509 is an apocalyptic number.

It is an amenable number.

50038509 is a deficient number, since it is larger than the sum of its proper divisors (16679507).

50038509 is a wasteful number, since it uses less digits than its factorization.

50038509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16679506.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 50038509 is about 7073.7902852714. The cubic root of 50038509 is about 368.4977045061.

The spelling of 50038509 in words is "fifty million, thirty-eight thousand, five hundred nine".