5244450121 has 2 divisors, whose sum is σ = 5244450122. Its totient is φ = 5244450120.

The previous prime is 5244450077. The next prime is 5244450143. The reversal of 5244450121 is 1210544425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2849424400 + 2395025721 = 53380^2 + 48939^2 .

It is a cyclic number.

It is not a de Polignac number, because 5244450121 - 2¹⁹ = 5243925833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5244450121.

It is not a weakly prime, because it can be changed into another prime (5244450191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2622225060 + 2622225061.

It is an arithmetic number, because the mean of its divisors is an integer number (2622225061).

Almost surely, 2^5244450121 is an apocalyptic number.

It is an amenable number.

5244450121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5244450121 is an equidigital number, since it uses as much as digits as its factorization.

5244450121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 5244450121 is about 72418.5758006880. The cubic root of 5244450121 is about 1737.4006770752.

Adding to 5244450121 its reverse (1210544425), we get a palindrome (6454994546).

The spelling of 5244450121 in words is "five billion, two hundred forty-four million, four hundred fifty thousand, one hundred twenty-one".