50277803221 has 2 divisors, whose sum is σ = 50277803222. Its totient is φ = 50277803220.

The previous prime is 50277803209. The next prime is 50277803273. The reversal of 50277803221 is 12230877205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40890906225 + 9386896996 = 202215^2 + 96886^2 .

It is a cyclic number.

It is not a de Polignac number, because 50277803221 - 2⁹ = 50277802709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50277803201) 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, 25138901610 + 25138901611.

It is an arithmetic number, because the mean of its divisors is an integer number (25138901611).

Almost surely, 2^50277803221 is an apocalyptic number.

It is an amenable number.

50277803221 is a deficient number, since it is larger than the sum of its proper divisors (1).

50277803221 is an equidigital number, since it uses as much as digits as its factorization.

50277803221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 50277803221 in words is "fifty billion, two hundred seventy-seven million, eight hundred three thousand, two hundred twenty-one".