531540412503 has 8 divisors (see below), whose sum is σ = 708997729008. Its totient is φ = 354221685504.

The previous prime is 531540412483. The next prime is 531540412517. The reversal of 531540412503 is 305214045135.

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

It is not a de Polignac number, because 531540412503 - 2⁵ = 531540412471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531540412573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34638426 + ... + 34653767.

It is an arithmetic number, because the mean of its divisors is an integer number (88624716126).

Almost surely, 2^531540412503 is an apocalyptic number.

531540412503 is a deficient number, since it is larger than the sum of its proper divisors (177457316505).

531540412503 is a wasteful number, since it uses less digits than its factorization.

531540412503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69294753.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 531540412503 its reverse (305214045135), we get a palindrome (836754457638).

The spelling of 531540412503 in words is "five hundred thirty-one billion, five hundred forty million, four hundred twelve thousand, five hundred three".