540688559 has 2 divisors, whose sum is σ = 540688560. Its totient is φ = 540688558.

The previous prime is 540688549. The next prime is 540688597. The reversal of 540688559 is 955886045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540688559 - 2¹⁶ = 540623023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540688549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270344279 + 270344280.

It is an arithmetic number, because the mean of its divisors is an integer number (270344280).

Almost surely, 2^540688559 is an apocalyptic number.

540688559 is a deficient number, since it is larger than the sum of its proper divisors (1).

540688559 is an equidigital number, since it uses as much as digits as its factorization.

540688559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728000, while the sum is 50.

The square root of 540688559 is about 23252.7107882070. The cubic root of 540688559 is about 814.6712558735.

The spelling of 540688559 in words is "five hundred forty million, six hundred eighty-eight thousand, five hundred fifty-nine".