50398498313 has 2 divisors, whose sum is σ = 50398498314. Its totient is φ = 50398498312.

The previous prime is 50398498307. The next prime is 50398498361. The reversal of 50398498313 is 31389489305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47292331024 + 3106167289 = 217468^2 + 55733^2 .

It is a cyclic number.

It is not a de Polignac number, because 50398498313 - 2⁸ = 50398498057 is a prime.

It is not a weakly prime, because it can be changed into another prime (50398498373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25199249156 + 25199249157.

It is an arithmetic number, because the mean of its divisors is an integer number (25199249157).

Almost surely, 2^50398498313 is an apocalyptic number.

It is an amenable number.

50398498313 is a deficient number, since it is larger than the sum of its proper divisors (1).

50398498313 is an equidigital number, since it uses as much as digits as its factorization.

50398498313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 50398498313 in words is "fifty billion, three hundred ninety-eight million, four hundred ninety-eight thousand, three hundred thirteen".