531056722543 has 2 divisors, whose sum is σ = 531056722544. Its totient is φ = 531056722542.

The previous prime is 531056722501. The next prime is 531056722627. The reversal of 531056722543 is 345227650135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531056722543 - 2²⁵ = 531023168111 is a prime.

It is a super-2 number, since 2×531056722543² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 531056722543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531056722843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265528361271 + 265528361272.

It is an arithmetic number, because the mean of its divisors is an integer number (265528361272).

Almost surely, 2^531056722543 is an apocalyptic number.

531056722543 is a deficient number, since it is larger than the sum of its proper divisors (1).

531056722543 is an equidigital number, since it uses as much as digits as its factorization.

531056722543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756000, while the sum is 43.

The spelling of 531056722543 in words is "five hundred thirty-one billion, fifty-six million, seven hundred twenty-two thousand, five hundred forty-three".