5243247641 has 2 divisors, whose sum is σ = 5243247642. Its totient is φ = 5243247640.

The previous prime is 5243247631. The next prime is 5243247671. The reversal of 5243247641 is 1467423425.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3377353225 + 1865894416 = 58115^2 + 43196^2 .

It is a cyclic number.

It is not a de Polignac number, because 5243247641 - 2¹⁸ = 5242985497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5243247595 and 5243247604.

It is not a weakly prime, because it can be changed into another prime (5243247631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2621623820 + 2621623821.

It is an arithmetic number, because the mean of its divisors is an integer number (2621623821).

Almost surely, 2^5243247641 is an apocalyptic number.

It is an amenable number.

5243247641 is a deficient number, since it is larger than the sum of its proper divisors (1).

5243247641 is an equidigital number, since it uses as much as digits as its factorization.

5243247641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 38.

The square root of 5243247641 is about 72410.2730349776. The cubic root of 5243247641 is about 1737.2678795964.

The spelling of 5243247641 in words is "five billion, two hundred forty-three million, two hundred forty-seven thousand, six hundred forty-one".