531320522503 has 8 divisors (see below), whose sum is σ = 547325658000. Its totient is φ = 515481243648.

The previous prime is 531320522459. The next prime is 531320522521. The reversal of 531320522503 is 305225023135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 531320522503 - 2¹⁷ = 531320391431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531320522903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41457658 + ... + 41470471.

It is an arithmetic number, because the mean of its divisors is an integer number (68415707250).

Almost surely, 2^531320522503 is an apocalyptic number.

531320522503 is a deficient number, since it is larger than the sum of its proper divisors (16005135497).

531320522503 is a wasteful number, since it uses less digits than its factorization.

531320522503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82928321.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 531320522503 its reverse (305225023135), we get a palindrome (836545545638).

The spelling of 531320522503 in words is "five hundred thirty-one billion, three hundred twenty million, five hundred twenty-two thousand, five hundred three".