531323089547 has 2 divisors, whose sum is σ = 531323089548. Its totient is φ = 531323089546.

The previous prime is 531323089543. The next prime is 531323089559. The reversal of 531323089547 is 745980323135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531323089547 - 2² = 531323089543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 531323089495 and 531323089504.

It is not a weakly prime, because it can be changed into another prime (531323089541) 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, 265661544773 + 265661544774.

It is an arithmetic number, because the mean of its divisors is an integer number (265661544774).

Almost surely, 2^531323089547 is an apocalyptic number.

531323089547 is a deficient number, since it is larger than the sum of its proper divisors (1).

531323089547 is an equidigital number, since it uses as much as digits as its factorization.

531323089547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 531323089547 in words is "five hundred thirty-one billion, three hundred twenty-three million, eighty-nine thousand, five hundred forty-seven".