530003 has 4 divisors (see below), whose sum is σ = 531480. Its totient is φ = 528528.

The previous prime is 529999. The next prime is 530017. The reversal of 530003 is 300035.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 530003 - 2² = 529999 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 530003.

It is not an unprimeable number, because it can be changed into a prime (530063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188 + ... + 1046.

It is an arithmetic number, because the mean of its divisors is an integer number (132870).

2⁵³⁰⁰⁰³ is an apocalyptic number.

530003 is a deficient number, since it is larger than the sum of its proper divisors (1477).

530003 is an equidigital number, since it uses as much as digits as its factorization.

530003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476.

The product of its (nonzero) digits is 45, while the sum is 11.

The square root of 530003 is about 728.0130493336. The cubic root of 530003 is about 80.9268760373.

Adding to 530003 its reverse (300035), we get a palindrome (830038).

The spelling of 530003 in words is "five hundred thirty thousand, three".