50065009 has 2 divisors, whose sum is σ = 50065010. Its totient is φ = 50065008.

The previous prime is 50065007. The next prime is 50065027. The reversal of 50065009 is 90056005.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47568609 + 2496400 = 6897^2 + 1580^2 .

It is a cyclic number.

It is not a de Polignac number, because 50065009 - 2¹ = 50065007 is a prime.

Together with 50065007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50065007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25032504 + 25032505.

It is an arithmetic number, because the mean of its divisors is an integer number (25032505).

Almost surely, 2^50065009 is an apocalyptic number.

It is an amenable number.

50065009 is a deficient number, since it is larger than the sum of its proper divisors (1).

50065009 is an equidigital number, since it uses as much as digits as its factorization.

50065009 is an evil number, because the sum of its binary digits is even.

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

The square root of 50065009 is about 7075.6631491331. The cubic root of 50065009 is about 368.5627441860.

The spelling of 50065009 in words is "fifty million, sixty-five thousand, nine".