50012066021 has 2 divisors, whose sum is σ = 50012066022. Its totient is φ = 50012066020.

The previous prime is 50012065993. The next prime is 50012066023. The reversal of 50012066021 is 12066021005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38122562500 + 11889503521 = 195250^2 + 109039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50012066021 is a prime.

Together with 50012066023, 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 (50012066023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25006033010 + 25006033011.

It is an arithmetic number, because the mean of its divisors is an integer number (25006033011).

Almost surely, 2^50012066021 is an apocalyptic number.

It is an amenable number.

50012066021 is a deficient number, since it is larger than the sum of its proper divisors (1).

50012066021 is an equidigital number, since it uses as much as digits as its factorization.

50012066021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 50012066021 its reverse (12066021005), we get a palindrome (62078087026).

The spelling of 50012066021 in words is "fifty billion, twelve million, sixty-six thousand, twenty-one".