50071222757 has 2 divisors, whose sum is σ = 50071222758. Its totient is φ = 50071222756.

The previous prime is 50071222699. The next prime is 50071222759. The reversal of 50071222757 is 75722217005.

It is a Cunningham number, because it is equal to 223766²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50071222756 + 1 = 223766^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 50071222757 - 2⁸ = 50071222501 is a prime.

It is a super-2 number, since 2×50071222757² (a number of 22 digits) contains 22 as substring.

Together with 50071222759, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50071222757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50071222759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25035611378 + 25035611379.

It is an arithmetic number, because the mean of its divisors is an integer number (25035611379).

Almost surely, 2^50071222757 is an apocalyptic number.

It is an amenable number.

50071222757 is a deficient number, since it is larger than the sum of its proper divisors (1).

50071222757 is an equidigital number, since it uses as much as digits as its factorization.

50071222757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68600, while the sum is 38.

The spelling of 50071222757 in words is "fifty billion, seventy-one million, two hundred twenty-two thousand, seven hundred fifty-seven".