505253403443 has 2 divisors, whose sum is σ = 505253403444. Its totient is φ = 505253403442.

The previous prime is 505253403409. The next prime is 505253403451. The reversal of 505253403443 is 344304352505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505253403443 - 2¹⁴ = 505253387059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505253403397 and 505253403406.

It is not a weakly prime, because it can be changed into another prime (505253403143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252626701721 + 252626701722.

It is an arithmetic number, because the mean of its divisors is an integer number (252626701722).

Almost surely, 2^505253403443 is an apocalyptic number.

505253403443 is a deficient number, since it is larger than the sum of its proper divisors (1).

505253403443 is an equidigital number, since it uses as much as digits as its factorization.

505253403443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 38.

Adding to 505253403443 its reverse (344304352505), we get a palindrome (849557755948).

The spelling of 505253403443 in words is "five hundred five billion, two hundred fifty-three million, four hundred three thousand, four hundred forty-three".