50617009 has 4 divisors (see below), whose sum is σ = 50636016. Its totient is φ = 50598004.

The previous prime is 50616971. The next prime is 50617013. The reversal of 50617009 is 90071605.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50617009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50617019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4699 + ... + 11104.

It is an arithmetic number, because the mean of its divisors is an integer number (12659004).

Almost surely, 2^50617009 is an apocalyptic number.

It is an amenable number.

50617009 is a deficient number, since it is larger than the sum of its proper divisors (19007).

50617009 is a wasteful number, since it uses less digits than its factorization.

50617009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19006.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 50617009 is about 7114.5631629778. The cubic root of 50617009 is about 369.9123459272.

The spelling of 50617009 in words is "fifty million, six hundred seventeen thousand, nine".