504543430481 has 2 divisors, whose sum is σ = 504543430482. Its totient is φ = 504543430480.

The previous prime is 504543430427. The next prime is 504543430487. The reversal of 504543430481 is 184034345405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295273778881 + 209269651600 = 543391^2 + 457460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504543430481 is a prime.

It is a super-2 number, since 2×504543430481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (504543430487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252271715240 + 252271715241.

It is an arithmetic number, because the mean of its divisors is an integer number (252271715241).

Almost surely, 2^504543430481 is an apocalyptic number.

It is an amenable number.

504543430481 is a deficient number, since it is larger than the sum of its proper divisors (1).

504543430481 is an equidigital number, since it uses as much as digits as its factorization.

504543430481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 504543430481 its reverse (184034345405), we get a palindrome (688577775886).

The spelling of 504543430481 in words is "five hundred four billion, five hundred forty-three million, four hundred thirty thousand, four hundred eighty-one".