539523 has 12 divisors (see below), whose sum is σ = 786448. Its totient is φ = 356400.

The previous prime is 539509. The next prime is 539533. The reversal of 539523 is 325935.

It is not a de Polignac number, because 539523 - 2⁴ = 539507 is a prime.

It is an Ulam number.

It is a Duffinian number.

539523 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (539503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1161 + ... + 1557.

2⁵³⁹⁵²³ is an apocalyptic number.

539523 is a deficient number, since it is larger than the sum of its proper divisors (246925).

539523 is a wasteful number, since it uses less digits than its factorization.

539523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 551 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 539523 is about 734.5222937393. The cubic root of 539523 is about 81.4085440788.

The spelling of 539523 in words is "five hundred thirty-nine thousand, five hundred twenty-three".