540435559 has 4 divisors (see below), whose sum is σ = 572225904. Its totient is φ = 508645216.

The previous prime is 540435557. The next prime is 540435569. The reversal of 540435559 is 955534045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540435559 - 2¹ = 540435557 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540435551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15895147 + ... + 15895180.

It is an arithmetic number, because the mean of its divisors is an integer number (143056476).

Almost surely, 2^540435559 is an apocalyptic number.

540435559 is a deficient number, since it is larger than the sum of its proper divisors (31790345).

540435559 is a wasteful number, since it uses less digits than its factorization.

540435559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31790344.

The product of its (nonzero) digits is 270000, while the sum is 40.

The square root of 540435559 is about 23247.2699257354. The cubic root of 540435559 is about 814.5441685508.

The spelling of 540435559 in words is "five hundred forty million, four hundred thirty-five thousand, five hundred fifty-nine".