540636565529 has 2 divisors, whose sum is σ = 540636565530. Its totient is φ = 540636565528.

The previous prime is 540636565499. The next prime is 540636565561. The reversal of 540636565529 is 925565636045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517759398025 + 22877167504 = 719555^2 + 151252^2 .

It is a cyclic number.

It is not a de Polignac number, because 540636565529 - 2¹² = 540636561433 is a prime.

It is a super-2 number, since 2×540636565529² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (540636565429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270318282764 + 270318282765.

It is an arithmetic number, because the mean of its divisors is an integer number (270318282765).

Almost surely, 2^540636565529 is an apocalyptic number.

It is an amenable number.

540636565529 is a deficient number, since it is larger than the sum of its proper divisors (1).

540636565529 is an equidigital number, since it uses as much as digits as its factorization.

540636565529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160000, while the sum is 56.

The spelling of 540636565529 in words is "five hundred forty billion, six hundred thirty-six million, five hundred sixty-five thousand, five hundred twenty-nine".