50555020323221 has 2 divisors, whose sum is σ = 50555020323222. Its totient is φ = 50555020323220.

The previous prime is 50555020323161. The next prime is 50555020323229. The reversal of 50555020323221 is 12232302055505.

50555020323221 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., 47854421100721 + 2700599222500 = 6917689^2 + 1643350^2 .

It is a cyclic number.

It is not a de Polignac number, because 50555020323221 - 2²² = 50555016128917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50555020323229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25277510161610 + 25277510161611.

It is an arithmetic number, because the mean of its divisors is an integer number (25277510161611).

Almost surely, 2^{50555020323221} is an apocalyptic number.

It is an amenable number.

50555020323221 is a deficient number, since it is larger than the sum of its proper divisors (1).

50555020323221 is an equidigital number, since it uses as much as digits as its factorization.

50555020323221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 50555020323221 its reverse (12232302055505), we get a palindrome (62787322378726).

The spelling of 50555020323221 in words is "fifty trillion, five hundred fifty-five billion, twenty million, three hundred twenty-three thousand, two hundred twenty-one".