5218503388841 has 2 divisors, whose sum is σ = 5218503388842. Its totient is φ = 5218503388840.

The previous prime is 5218503388837. The next prime is 5218503388871. The reversal of 5218503388841 is 1488833058125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5041910976400 + 176592412441 = 2245420^2 + 420229^2 .

It is a cyclic number.

It is not a de Polignac number, because 5218503388841 - 2² = 5218503388837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5218503388871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2609251694420 + 2609251694421.

It is an arithmetic number, because the mean of its divisors is an integer number (2609251694421).

Almost surely, 2^{5218503388841} is an apocalyptic number.

It is an amenable number.

5218503388841 is a deficient number, since it is larger than the sum of its proper divisors (1).

5218503388841 is an equidigital number, since it uses as much as digits as its factorization.

5218503388841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7372800, while the sum is 56.

The spelling of 5218503388841 in words is "five trillion, two hundred eighteen billion, five hundred three million, three hundred eighty-eight thousand, eight hundred forty-one".