5005555050521 has 2 divisors, whose sum is σ = 5005555050522. Its totient is φ = 5005555050520.

The previous prime is 5005555050413. The next prime is 5005555050533. The reversal of 5005555050521 is 1250505555005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4464616865296 + 540938185225 = 2112964^2 + 735485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5005555050521 is a prime.

It is not a weakly prime, because it can be changed into another prime (5005555050541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502777525260 + 2502777525261.

It is an arithmetic number, because the mean of its divisors is an integer number (2502777525261).

Almost surely, 2^{5005555050521} is an apocalyptic number.

It is an amenable number.

5005555050521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5005555050521 is an equidigital number, since it uses as much as digits as its factorization.

5005555050521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 156250, while the sum is 38.

The spelling of 5005555050521 in words is "five trillion, five billion, five hundred fifty-five million, fifty thousand, five hundred twenty-one".