50517771497 has 2 divisors, whose sum is σ = 50517771498. Its totient is φ = 50517771496.

The previous prime is 50517771449. The next prime is 50517771517. The reversal of 50517771497 is 79417771505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49129165801 + 1388605696 = 221651^2 + 37264^2 .

It is a cyclic number.

It is not a de Polignac number, because 50517771497 - 2¹⁶ = 50517705961 is a prime.

It is not a weakly prime, because it can be changed into another prime (50517771427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25258885748 + 25258885749.

It is an arithmetic number, because the mean of its divisors is an integer number (25258885749).

Almost surely, 2^50517771497 is an apocalyptic number.

It is an amenable number.

50517771497 is a deficient number, since it is larger than the sum of its proper divisors (1).

50517771497 is an equidigital number, since it uses as much as digits as its factorization.

50517771497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160900, while the sum is 53.

The spelling of 50517771497 in words is "fifty billion, five hundred seventeen million, seven hundred seventy-one thousand, four hundred ninety-seven".