505213006433 has 2 divisors, whose sum is σ = 505213006434. Its totient is φ = 505213006432.

The previous prime is 505213006429. The next prime is 505213006451. The reversal of 505213006433 is 334600312505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332828609569 + 172384396864 = 576913^2 + 415192^2 .

It is a cyclic number.

It is not a de Polignac number, because 505213006433 - 2² = 505213006429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505213006433.

It is not a weakly prime, because it can be changed into another prime (505213606433) 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, 252606503216 + 252606503217.

It is an arithmetic number, because the mean of its divisors is an integer number (252606503217).

Almost surely, 2^505213006433 is an apocalyptic number.

It is an amenable number.

505213006433 is a deficient number, since it is larger than the sum of its proper divisors (1).

505213006433 is an equidigital number, since it uses as much as digits as its factorization.

505213006433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 505213006433 its reverse (334600312505), we get a palindrome (839813318938).

The spelling of 505213006433 in words is "five hundred five billion, two hundred thirteen million, six thousand, four hundred thirty-three".