50991235319 has 2 divisors, whose sum is σ = 50991235320. Its totient is φ = 50991235318.

The previous prime is 50991235297. The next prime is 50991235331. The reversal of 50991235319 is 91353219905.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50991235319 - 2¹⁶ = 50991169783 is a prime.

It is a super-2 number, since 2×50991235319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50991235349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25495617659 + 25495617660.

It is an arithmetic number, because the mean of its divisors is an integer number (25495617660).

Almost surely, 2^50991235319 is an apocalyptic number.

50991235319 is a deficient number, since it is larger than the sum of its proper divisors (1).

50991235319 is an equidigital number, since it uses as much as digits as its factorization.

50991235319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 328050, while the sum is 47.

The spelling of 50991235319 in words is "fifty billion, nine hundred ninety-one million, two hundred thirty-five thousand, three hundred nineteen".