6223561 has 2 divisors, whose sum is σ = 6223562. Its totient is φ = 6223560.

The previous prime is 6223549. The next prime is 6223577. The reversal of 6223561 is 1653226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4923961 + 1299600 = 2219^2 + 1140^2 .

It is a cyclic number.

It is not a de Polignac number, because 6223561 - 2¹³ = 6215369 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6223531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3111780 + 3111781.

It is an arithmetic number, because the mean of its divisors is an integer number (3111781).

Almost surely, 2^6223561 is an apocalyptic number.

It is an amenable number.

6223561 is a deficient number, since it is larger than the sum of its proper divisors (1).

6223561 is an equidigital number, since it uses as much as digits as its factorization.

6223561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 6223561 is about 2494.7065959748. The cubic root of 6223561 is about 183.9414688594.

Adding to 6223561 its reverse (1653226), we get a palindrome (7876787).

The spelling of 6223561 in words is "six million, two hundred twenty-three thousand, five hundred sixty-one".