531315503051140 has 12 divisors (see below), whose sum is σ = 1115762556407436. Its totient is φ = 212526201220448.

The previous prime is 531315503051093. The next prime is 531315503051141. The reversal of 531315503051140 is 41150305513135.

It can be written as a sum of positive squares in 2 ways, for example, as 247466059950916 + 283849443100224 = 15731054^2 + 16847832^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 531315503051140.

It is not an unprimeable number, because it can be changed into a prime (531315503051141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13282887576259 + ... + 13282887576298.

It is an arithmetic number, because the mean of its divisors is an integer number (92980213033953).

Almost surely, 2^{531315503051140} is an apocalyptic number.

It is an amenable number.

531315503051140 is an abundant number, since it is smaller than the sum of its proper divisors (584447053356296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531315503051140 is a wasteful number, since it uses less digits than its factorization.

531315503051140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26565775152566 (or 26565775152564 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 37.

Adding to 531315503051140 its reverse (41150305513135), we get a palindrome (572465808564275).

The spelling of 531315503051140 in words is "five hundred thirty-one trillion, three hundred fifteen billion, five hundred three million, fifty-one thousand, one hundred forty".