506503043 has 2 divisors, whose sum is σ = 506503044. Its totient is φ = 506503042.

The previous prime is 506503031. The next prime is 506503099. The reversal of 506503043 is 340305605.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 506503043 - 2¹² = 506498947 is a prime.

It is not a weakly prime, because it can be changed into another prime (506533043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253251521 + 253251522.

It is an arithmetic number, because the mean of its divisors is an integer number (253251522).

Almost surely, 2^506503043 is an apocalyptic number.

506503043 is a deficient number, since it is larger than the sum of its proper divisors (1).

506503043 is an equidigital number, since it uses as much as digits as its factorization.

506503043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 506503043 is about 22505.6224752838. The cubic root of 506503043 is about 797.1266940588.

Adding to 506503043 its reverse (340305605), we get a palindrome (846808648).

The spelling of 506503043 in words is "five hundred six million, five hundred three thousand, forty-three".