531354551291 has 2 divisors, whose sum is σ = 531354551292. Its totient is φ = 531354551290.

The previous prime is 531354551279. The next prime is 531354551293. The reversal of 531354551291 is 192155453135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531354551291 - 2³⁴ = 514174682107 is a prime.

Together with 531354551293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (531354551293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265677275645 + 265677275646.

It is an arithmetic number, because the mean of its divisors is an integer number (265677275646).

Almost surely, 2^531354551291 is an apocalyptic number.

531354551291 is a deficient number, since it is larger than the sum of its proper divisors (1).

531354551291 is an equidigital number, since it uses as much as digits as its factorization.

531354551291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 405000, while the sum is 44.

The spelling of 531354551291 in words is "five hundred thirty-one billion, three hundred fifty-four million, five hundred fifty-one thousand, two hundred ninety-one".