43220563 has 2 divisors, whose sum is σ = 43220564. Its totient is φ = 43220562.

The previous prime is 43220557. The next prime is 43220641. The reversal of 43220563 is 36502234.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43220563 - 2¹³ = 43212371 is a prime.

It is not a weakly prime, because it can be changed into another prime (43220533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21610281 + 21610282.

It is an arithmetic number, because the mean of its divisors is an integer number (21610282).

Almost surely, 2^43220563 is an apocalyptic number.

43220563 is a deficient number, since it is larger than the sum of its proper divisors (1).

43220563 is an equidigital number, since it uses as much as digits as its factorization.

43220563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 43220563 is about 6574.2347843684. The cubic root of 43220563 is about 350.9377925108.

Adding to 43220563 its reverse (36502234), we get a palindrome (79722797).

The spelling of 43220563 in words is "forty-three million, two hundred twenty thousand, five hundred sixty-three".