50997832729 has 2 divisors, whose sum is σ = 50997832730. Its totient is φ = 50997832728.

The previous prime is 50997832681. The next prime is 50997832751. The reversal of 50997832729 is 92723879905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48682009600 + 2315823129 = 220640^2 + 48123^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50997832729 is a prime.

It is not a weakly prime, because it can be changed into another prime (50997832229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25498916364 + 25498916365.

It is an arithmetic number, because the mean of its divisors is an integer number (25498916365).

Almost surely, 2^50997832729 is an apocalyptic number.

It is an amenable number.

50997832729 is a deficient number, since it is larger than the sum of its proper divisors (1).

50997832729 is an equidigital number, since it uses as much as digits as its factorization.

50997832729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17146080, while the sum is 61.

The spelling of 50997832729 in words is "fifty billion, nine hundred ninety-seven million, eight hundred thirty-two thousand, seven hundred twenty-nine".