50223209 has 2 divisors, whose sum is σ = 50223210. Its totient is φ = 50223208.

The previous prime is 50223181. The next prime is 50223211. The reversal of 50223209 is 90232205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35760400 + 14462809 = 5980^2 + 3803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50223209 is a prime.

Together with 50223211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50223709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25111604 + 25111605.

It is an arithmetic number, because the mean of its divisors is an integer number (25111605).

Almost surely, 2^50223209 is an apocalyptic number.

It is an amenable number.

50223209 is a deficient number, since it is larger than the sum of its proper divisors (1).

50223209 is an equidigital number, since it uses as much as digits as its factorization.

50223209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 50223209 is about 7086.8334959981. The cubic root of 50223209 is about 368.9505421090.

It can be divided in two parts, 50 and 223209, that multiplied together give a triangular number (11160450 = T₄₇₂₄).

The spelling of 50223209 in words is "fifty million, two hundred twenty-three thousand, two hundred nine".