50012515513 has 2 divisors, whose sum is σ = 50012515514. Its totient is φ = 50012515512.

The previous prime is 50012515507. The next prime is 50012515537. The reversal of 50012515513 is 31551521005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31296086649 + 18716428864 = 176907^2 + 136808^2 .

It is a cyclic number.

It is not a de Polignac number, because 50012515513 - 2¹⁷ = 50012384441 is a prime.

It is not a weakly prime, because it can be changed into another prime (50012515313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25006257756 + 25006257757.

It is an arithmetic number, because the mean of its divisors is an integer number (25006257757).

Almost surely, 2^50012515513 is an apocalyptic number.

It is an amenable number.

50012515513 is a deficient number, since it is larger than the sum of its proper divisors (1).

50012515513 is an equidigital number, since it uses as much as digits as its factorization.

50012515513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 50012515513 in words is "fifty billion, twelve million, five hundred fifteen thousand, five hundred thirteen".