539505 has 24 divisors (see below), whose sum is σ = 985920. Its totient is φ = 272160.

The previous prime is 539503. The next prime is 539507. The reversal of 539505 is 505935.

539505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (539503) and next prime (539507).

It is not a de Polignac number, because 539505 - 2¹ = 539503 is a prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 539505.

It is not an unprimeable number, because it can be changed into a prime (539501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 540 + ... + 1170.

It is an arithmetic number, because the mean of its divisors is an integer number (41080).

2⁵³⁹⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

539505 is a deficient number, since it is larger than the sum of its proper divisors (446415).

539505 is a wasteful number, since it uses less digits than its factorization.

539505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

The square root of 539505 is about 734.5100407755. The cubic root of 539505 is about 81.4076387296.

Subtracting from 539505 its product of nonzero digits (3375), we obtain a triangular number (536130 = T₁₀₃₅).

The spelling of 539505 in words is "five hundred thirty-nine thousand, five hundred five".