5630216561 has 4 divisors (see below), whose sum is σ = 5714249712. Its totient is φ = 5546183412.

The previous prime is 5630216551. The next prime is 5630216563. The reversal of 5630216561 is 1656120365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5630216561 - 2¹⁸ = 5629954417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5630216563) 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 in 3 ways as a sum of consecutive naturals, for example, 42016475 + ... + 42016608.

It is an arithmetic number, because the mean of its divisors is an integer number (1428562428).

Almost surely, 2^5630216561 is an apocalyptic number.

It is an amenable number.

5630216561 is a deficient number, since it is larger than the sum of its proper divisors (84033151).

5630216561 is an equidigital number, since it uses as much as digits as its factorization.

5630216561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84033150.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 5630216561 is about 75034.7690141044. The cubic root of 5630216561 is about 1778.9962527791.

The spelling of 5630216561 in words is "five billion, six hundred thirty million, two hundred sixteen thousand, five hundred sixty-one".