43255603169 has 2 divisors, whose sum is σ = 43255603170. Its totient is φ = 43255603168.

The previous prime is 43255603133. The next prime is 43255603187. The reversal of 43255603169 is 96130655234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34889756944 + 8365846225 = 186788^2 + 91465^2 .

It is a cyclic number.

It is not a de Polignac number, because 43255603169 - 2³² = 38960635873 is a prime.

It is a super-2 number, since 2×43255603169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43255203169) 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 as a sum of consecutive naturals, namely, 21627801584 + 21627801585.

It is an arithmetic number, because the mean of its divisors is an integer number (21627801585).

Almost surely, 2^43255603169 is an apocalyptic number.

It is an amenable number.

43255603169 is a deficient number, since it is larger than the sum of its proper divisors (1).

43255603169 is an equidigital number, since it uses as much as digits as its factorization.

43255603169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 43255603169 in words is "forty-three billion, two hundred fifty-five million, six hundred three thousand, one hundred sixty-nine".