527797532981 has 2 divisors, whose sum is σ = 527797532982. Its totient is φ = 527797532980.

The previous prime is 527797532947. The next prime is 527797533031. The reversal of 527797532981 is 189235797725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 276229080625 + 251568452356 = 525575^2 + 501566^2 .

It is a cyclic number.

It is not a de Polignac number, because 527797532981 - 2¹⁸ = 527797270837 is a prime.

It is a super-2 number, since 2×527797532981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (527797532681) 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, 263898766490 + 263898766491.

It is an arithmetic number, because the mean of its divisors is an integer number (263898766491).

Almost surely, 2^527797532981 is an apocalyptic number.

It is an amenable number.

527797532981 is a deficient number, since it is larger than the sum of its proper divisors (1).

527797532981 is an equidigital number, since it uses as much as digits as its factorization.

527797532981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66679200, while the sum is 65.

The spelling of 527797532981 in words is "five hundred twenty-seven billion, seven hundred ninety-seven million, five hundred thirty-two thousand, nine hundred eighty-one".