10530503 has 4 divisors (see below), whose sum is σ = 11084760. Its totient is φ = 9976248.

The previous prime is 10530493. The next prime is 10530511. The reversal of 10530503 is 30503501.

10530503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10530503 - 2¹⁰ = 10529479 is a prime.

It is a super-2 number, since 2×10530503² = 221782986866018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10530703) 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, 277100 + ... + 277137.

It is an arithmetic number, because the mean of its divisors is an integer number (2771190).

Almost surely, 2^10530503 is an apocalyptic number.

10530503 is a deficient number, since it is larger than the sum of its proper divisors (554257).

10530503 is an equidigital number, since it uses as much as digits as its factorization.

10530503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554256.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 10530503 is about 3245.0736509361. The cubic root of 10530503 is about 219.1877971855.

The spelling of 10530503 in words is "ten million, five hundred thirty thousand, five hundred three".