531325354481 has 2 divisors, whose sum is σ = 531325354482. Its totient is φ = 531325354480.

The previous prime is 531325354477. The next prime is 531325354531. The reversal of 531325354481 is 184453523135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402006721600 + 129318632881 = 634040^2 + 359609^2 .

It is a cyclic number.

It is not a de Polignac number, because 531325354481 - 2² = 531325354477 is a prime.

It is a super-2 number, since 2×531325354481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (531325354451) 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 as a sum of consecutive naturals, namely, 265662677240 + 265662677241.

It is an arithmetic number, because the mean of its divisors is an integer number (265662677241).

Almost surely, 2^531325354481 is an apocalyptic number.

It is an amenable number.

531325354481 is a deficient number, since it is larger than the sum of its proper divisors (1).

531325354481 is an equidigital number, since it uses as much as digits as its factorization.

531325354481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864000, while the sum is 44.

The spelling of 531325354481 in words is "five hundred thirty-one billion, three hundred twenty-five million, three hundred fifty-four thousand, four hundred eighty-one".