5631221417 has 2 divisors, whose sum is σ = 5631221418. Its totient is φ = 5631221416.

The previous prime is 5631221347. The next prime is 5631221419. The reversal of 5631221417 is 7141221365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4886149801 + 745071616 = 69901^2 + 27296^2 .

It is a cyclic number.

It is not a de Polignac number, because 5631221417 - 2²⁶ = 5564112553 is a prime.

Together with 5631221419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5631221419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815610708 + 2815610709.

It is an arithmetic number, because the mean of its divisors is an integer number (2815610709).

Almost surely, 2^5631221417 is an apocalyptic number.

It is an amenable number.

5631221417 is a deficient number, since it is larger than the sum of its proper divisors (1).

5631221417 is an equidigital number, since it uses as much as digits as its factorization.

5631221417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 5631221417 is about 75041.4646512180. The cubic root of 5631221417 is about 1779.1020822619.

The spelling of 5631221417 in words is "five billion, six hundred thirty-one million, two hundred twenty-one thousand, four hundred seventeen".