422543503 has 2 divisors, whose sum is σ = 422543504. Its totient is φ = 422543502.

The previous prime is 422543497. The next prime is 422543509. The reversal of 422543503 is 305345224.

It is a balanced prime because it is at equal distance from previous prime (422543497) and next prime (422543509).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422543503 is a prime.

It is a super-2 number, since 2×422543503² = 357086023855022018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422543509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211271751 + 211271752.

It is an arithmetic number, because the mean of its divisors is an integer number (211271752).

Almost surely, 2^422543503 is an apocalyptic number.

422543503 is a deficient number, since it is larger than the sum of its proper divisors (1).

422543503 is an equidigital number, since it uses as much as digits as its factorization.

422543503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 422543503 is about 20555.8629835869. The cubic root of 422543503 is about 750.3959408636.

Adding to 422543503 its reverse (305345224), we get a palindrome (727888727).

The spelling of 422543503 in words is "four hundred twenty-two million, five hundred forty-three thousand, five hundred three".