505050055513 has 2 divisors, whose sum is σ = 505050055514. Its totient is φ = 505050055512.

The previous prime is 505050055487. The next prime is 505050055579. The reversal of 505050055513 is 315550050505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 500312899584 + 4737155929 = 707328^2 + 68827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505050055513 is a prime.

It is not a weakly prime, because it can be changed into another prime (505050052513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252525027756 + 252525027757.

It is an arithmetic number, because the mean of its divisors is an integer number (252525027757).

Almost surely, 2^505050055513 is an apocalyptic number.

It is an amenable number.

505050055513 is a deficient number, since it is larger than the sum of its proper divisors (1).

505050055513 is an equidigital number, since it uses as much as digits as its factorization.

505050055513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46875, while the sum is 34.

The spelling of 505050055513 in words is "five hundred five billion, fifty million, fifty-five thousand, five hundred thirteen".