50295021221 has 2 divisors, whose sum is σ = 50295021222. Its totient is φ = 50295021220.

The previous prime is 50295021211. The next prime is 50295021247. The reversal of 50295021221 is 12212059205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41030958721 + 9264062500 = 202561^2 + 96250^2 .

It is a cyclic number.

It is not a de Polignac number, because 50295021221 - 2⁶ = 50295021157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50295021211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25147510610 + 25147510611.

It is an arithmetic number, because the mean of its divisors is an integer number (25147510611).

Almost surely, 2^50295021221 is an apocalyptic number.

It is an amenable number.

50295021221 is a deficient number, since it is larger than the sum of its proper divisors (1).

50295021221 is an equidigital number, since it uses as much as digits as its factorization.

50295021221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 50295021221 in words is "fifty billion, two hundred ninety-five million, twenty-one thousand, two hundred twenty-one".