43234553563 has 2 divisors, whose sum is σ = 43234553564. Its totient is φ = 43234553562.

The previous prime is 43234553543. The next prime is 43234553567. The reversal of 43234553563 is 36535543234.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43234553563 is a prime.

It is not a weakly prime, because it can be changed into another prime (43234553567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21617276781 + 21617276782.

It is an arithmetic number, because the mean of its divisors is an integer number (21617276782).

Almost surely, 2^43234553563 is an apocalyptic number.

43234553563 is a deficient number, since it is larger than the sum of its proper divisors (1).

43234553563 is an equidigital number, since it uses as much as digits as its factorization.

43234553563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944000, while the sum is 43.

The spelling of 43234553563 in words is "forty-three billion, two hundred thirty-four million, five hundred fifty-three thousand, five hundred sixty-three".