505202217043 has 2 divisors, whose sum is σ = 505202217044. Its totient is φ = 505202217042.

The previous prime is 505202216989. The next prime is 505202217061. The reversal of 505202217043 is 340712202505.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505202217043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505202216996 and 505202217014.

It is not a weakly prime, because it can be changed into another prime (505202217073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252601108521 + 252601108522.

It is an arithmetic number, because the mean of its divisors is an integer number (252601108522).

Almost surely, 2^505202217043 is an apocalyptic number.

505202217043 is a deficient number, since it is larger than the sum of its proper divisors (1).

505202217043 is an equidigital number, since it uses as much as digits as its factorization.

505202217043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 31.

Adding to 505202217043 its reverse (340712202505), we get a palindrome (845914419548).

The spelling of 505202217043 in words is "five hundred five billion, two hundred two million, two hundred seventeen thousand, forty-three".