5017541821 has 2 divisors, whose sum is σ = 5017541822. Its totient is φ = 5017541820.

The previous prime is 5017541819. The next prime is 5017541909. The reversal of 5017541821 is 1281457105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4989303225 + 28238596 = 70635^2 + 5314^2 .

It is a cyclic number.

It is not a de Polignac number, because 5017541821 - 2¹ = 5017541819 is a prime.

Together with 5017541819, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5017541521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2508770910 + 2508770911.

It is an arithmetic number, because the mean of its divisors is an integer number (2508770911).

Almost surely, 2^5017541821 is an apocalyptic number.

It is an amenable number.

5017541821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5017541821 is an equidigital number, since it uses as much as digits as its factorization.

5017541821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 5017541821 is about 70834.6089210634. The cubic root of 5017541821 is about 1711.9733520842.

Adding to 5017541821 its reverse (1281457105), we get a palindrome (6298998926).

The spelling of 5017541821 in words is "five billion, seventeen million, five hundred forty-one thousand, eight hundred twenty-one".