503530222003 has 4 divisors (see below), whose sum is σ = 517139146960. Its totient is φ = 489921297048.

The previous prime is 503530222001. The next prime is 503530222079. The reversal of 503530222003 is 300222035305.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300222035305 = 5 ⋅60044407061.

It is a cyclic number.

It is not a de Polignac number, because 503530222003 - 2¹ = 503530222001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503530222001) 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, 6804462423 + ... + 6804462496.

It is an arithmetic number, because the mean of its divisors is an integer number (129284786740).

Almost surely, 2^503530222003 is an apocalyptic number.

503530222003 is a deficient number, since it is larger than the sum of its proper divisors (13608924957).

503530222003 is a wasteful number, since it uses less digits than its factorization.

503530222003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13608924956.

The product of its (nonzero) digits is 5400, while the sum is 25.

Adding to 503530222003 its reverse (300222035305), we get a palindrome (803752257308).

The spelling of 503530222003 in words is "five hundred three billion, five hundred thirty million, two hundred twenty-two thousand, three".