50221317229 has 2 divisors, whose sum is σ = 50221317230. Its totient is φ = 50221317228.

The previous prime is 50221317191. The next prime is 50221317239. The reversal of 50221317229 is 92271312205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48928555204 + 1292762025 = 221198^2 + 35955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50221317229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50221317194 and 50221317203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50221317239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25110658614 + 25110658615.

It is an arithmetic number, because the mean of its divisors is an integer number (25110658615).

Almost surely, 2^50221317229 is an apocalyptic number.

It is an amenable number.

50221317229 is a deficient number, since it is larger than the sum of its proper divisors (1).

50221317229 is an equidigital number, since it uses as much as digits as its factorization.

50221317229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 50221317229 in words is "fifty billion, two hundred twenty-one million, three hundred seventeen thousand, two hundred twenty-nine".