50508509 has 2 divisors, whose sum is σ = 50508510. Its totient is φ = 50508508.

The previous prime is 50508499. The next prime is 50508511. The reversal of 50508509 is 90580505.

50508509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43099225 + 7409284 = 6565^2 + 2722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50508509 is a prime.

It is a super-2 number, since 2×50508509² = 5102218962806162, which contains 22 as substring.

Together with 50508511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50508559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25254254 + 25254255.

It is an arithmetic number, because the mean of its divisors is an integer number (25254255).

Almost surely, 2^50508509 is an apocalyptic number.

It is an amenable number.

50508509 is a deficient number, since it is larger than the sum of its proper divisors (1).

50508509 is an equidigital number, since it uses as much as digits as its factorization.

50508509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 50508509 is about 7106.9338677098. The cubic root of 50508509 is about 369.6478485314.

The spelling of 50508509 in words is "fifty million, five hundred eight thousand, five hundred nine".