50253657613 has 2 divisors, whose sum is σ = 50253657614. Its totient is φ = 50253657612.

The previous prime is 50253657611. The next prime is 50253657733. The reversal of 50253657613 is 31675635205.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50034084489 + 219573124 = 223683^2 + 14818^2 .

It is a cyclic number.

It is not a de Polignac number, because 50253657613 - 2¹ = 50253657611 is a prime.

Together with 50253657611, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 50253657613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50253657611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25126828806 + 25126828807.

It is an arithmetic number, because the mean of its divisors is an integer number (25126828807).

Almost surely, 2^50253657613 is an apocalyptic number.

It is an amenable number.

50253657613 is a deficient number, since it is larger than the sum of its proper divisors (1).

50253657613 is an equidigital number, since it uses as much as digits as its factorization.

50253657613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567000, while the sum is 43.

The spelling of 50253657613 in words is "fifty billion, two hundred fifty-three million, six hundred fifty-seven thousand, six hundred thirteen".