5630018621 has 2 divisors, whose sum is σ = 5630018622. Its totient is φ = 5630018620.

The previous prime is 5630018543. The next prime is 5630018759. The reversal of 5630018621 is 1268100365.

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., 4554900100 + 1075118521 = 67490^2 + 32789^2 .

It is a cyclic number.

It is not a de Polignac number, because 5630018621 - 2²⁶ = 5562909757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5630018321) 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, 2815009310 + 2815009311.

It is an arithmetic number, because the mean of its divisors is an integer number (2815009311).

Almost surely, 2^5630018621 is an apocalyptic number.

It is an amenable number.

5630018621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5630018621 is an equidigital number, since it uses as much as digits as its factorization.

5630018621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 5630018621 is about 75033.4500139771. The cubic root of 5630018621 is about 1778.9754046382.

Adding to 5630018621 its reverse (1268100365), we get a palindrome (6898118986).

The spelling of 5630018621 in words is "five billion, six hundred thirty million, eighteen thousand, six hundred twenty-one".