503530133 has 2 divisors, whose sum is σ = 503530134. Its totient is φ = 503530132.

The previous prime is 503530067. The next prime is 503530163. The reversal of 503530133 is 331035305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 467554129 + 35976004 = 21623^2 + 5998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503530133 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 503530099 and 503530108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503530163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251765066 + 251765067.

It is an arithmetic number, because the mean of its divisors is an integer number (251765067).

Almost surely, 2^503530133 is an apocalyptic number.

It is an amenable number.

503530133 is a deficient number, since it is larger than the sum of its proper divisors (1).

503530133 is an equidigital number, since it uses as much as digits as its factorization.

503530133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025, while the sum is 23.

The square root of 503530133 is about 22439.4771106637. The cubic root of 503530133 is about 795.5640594395.

Adding to 503530133 its reverse (331035305), we get a palindrome (834565438).

The spelling of 503530133 in words is "five hundred three million, five hundred thirty thousand, one hundred thirty-three".