531041540035221 has 12 divisors (see below), whose sum is σ = 800410437154848. Its totient is φ = 338635184949864.

The previous prime is 531041540035163. The next prime is 531041540035229. The reversal of 531041540035221 is 122530045140135.

531041540035221 is a `hidden beast` number, since 5 + 3 + 1 + 0 + 41 + 540 + 0 + 3 + 52 + 21 = 666.

It is not a de Polignac number, because 531041540035221 - 2⁶ = 531041540035157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531041540035229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1282709033695 + ... + 1282709034108.

It is an arithmetic number, because the mean of its divisors is an integer number (66700869762904).

Almost surely, 2^{531041540035221} is an apocalyptic number.

It is an amenable number.

531041540035221 is a deficient number, since it is larger than the sum of its proper divisors (269368897119627).

531041540035221 is a wasteful number, since it uses less digits than its factorization.

531041540035221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565418067832 (or 2565418067829 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 531041540035221 its reverse (122530045140135), we get a palindrome (653571585175356).

The spelling of 531041540035221 in words is "five hundred thirty-one trillion, forty-one billion, five hundred forty million, thirty-five thousand, two hundred twenty-one".