506530033 has 4 divisors (see below), whose sum is σ = 506579940. Its totient is φ = 506480128.

The previous prime is 506530021. The next prime is 506530051. The reversal of 506530033 is 330035605.

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 can be written as a sum of positive squares in 2 ways, for example, as 260887104 + 245642929 = 16152^2 + 15673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506530033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506530093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3688 + ... + 32041.

It is an arithmetic number, because the mean of its divisors is an integer number (126644985).

Almost surely, 2^506530033 is an apocalyptic number.

It is an amenable number.

506530033 is a deficient number, since it is larger than the sum of its proper divisors (49907).

506530033 is a wasteful number, since it uses less digits than its factorization.

506530033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49906.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 506530033 is about 22506.2220952340. Note that the first 3 decimals coincide. The cubic root of 506530033 is about 797.1408526228.

Adding to 506530033 its reverse (330035605), we get a palindrome (836565638).

The spelling of 506530033 in words is "five hundred six million, five hundred thirty thousand, thirty-three".