530042503 has 4 divisors (see below), whose sum is σ = 532377720. Its totient is φ = 527707288.

The previous prime is 530042497. The next prime is 530042533. The reversal of 530042503 is 305240035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 530042503 - 2⁹ = 530041991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530042533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1167268 + ... + 1167721.

It is an arithmetic number, because the mean of its divisors is an integer number (133094430).

Almost surely, 2^530042503 is an apocalyptic number.

530042503 is a deficient number, since it is larger than the sum of its proper divisors (2335217).

530042503 is a wasteful number, since it uses less digits than its factorization.

530042503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335216.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 530042503 is about 23022.6519541082. The cubic root of 530042503 is about 809.2888657622.

Adding to 530042503 its reverse (305240035), we get a palindrome (835282538).

The spelling of 530042503 in words is "five hundred thirty million, forty-two thousand, five hundred three".