50515232321 has 2 divisors, whose sum is σ = 50515232322. Its totient is φ = 50515232320.

The previous prime is 50515232291. The next prime is 50515232333. The reversal of 50515232321 is 12323251505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43587000625 + 6928231696 = 208775^2 + 83236^2 .

It is a cyclic number.

It is not a de Polignac number, because 50515232321 - 2¹⁴ = 50515215937 is a prime.

It is not a weakly prime, because it can be changed into another prime (50515222321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25257616160 + 25257616161.

It is an arithmetic number, because the mean of its divisors is an integer number (25257616161).

Almost surely, 2^50515232321 is an apocalyptic number.

It is an amenable number.

50515232321 is a deficient number, since it is larger than the sum of its proper divisors (1).

50515232321 is an equidigital number, since it uses as much as digits as its factorization.

50515232321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 50515232321 its reverse (12323251505), we get a palindrome (62838483826).

The spelling of 50515232321 in words is "fifty billion, five hundred fifteen million, two hundred thirty-two thousand, three hundred twenty-one".