3205255606243 has 2 divisors, whose sum is σ = 3205255606244. Its totient is φ = 3205255606242.

The previous prime is 3205255606181. The next prime is 3205255606277. The reversal of 3205255606243 is 3426065525023.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3205255606243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3205255606243.

It is not a weakly prime, because it can be changed into another prime (3205255609243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602627803121 + 1602627803122.

It is an arithmetic number, because the mean of its divisors is an integer number (1602627803122).

Almost surely, 2^{3205255606243} is an apocalyptic number.

3205255606243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3205255606243 is an equidigital number, since it uses as much as digits as its factorization.

3205255606243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296000, while the sum is 43.

The spelling of 3205255606243 in words is "three trillion, two hundred five billion, two hundred fifty-five million, six hundred six thousand, two hundred forty-three".