50056009 has 4 divisors (see below), whose sum is σ = 51000516. Its totient is φ = 49111504.

The previous prime is 50055983. The next prime is 50056033. The reversal of 50056009 is 90065005.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18662400 + 31393609 = 4320^2 + 5603^2 .

It is a cyclic number.

It is not a de Polignac number, because 50056009 - 2¹⁵ = 50023241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50056049) 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, 472174 + ... + 472279.

It is an arithmetic number, because the mean of its divisors is an integer number (12750129).

Almost surely, 2^50056009 is an apocalyptic number.

It is an amenable number.

50056009 is a deficient number, since it is larger than the sum of its proper divisors (944507).

50056009 is an equidigital number, since it uses as much as digits as its factorization.

50056009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944506.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 50056009 is about 7075.0271377571. The cubic root of 50056009 is about 368.5406578124.

The spelling of 50056009 in words is "fifty million, fifty-six thousand, nine".