539563 has 6 divisors (see below), whose sum is σ = 573476. Its totient is φ = 507552.

The previous prime is 539533. The next prime is 539573. The reversal of 539563 is 365935.

It is not a de Polignac number, because 539563 - 2¹⁷ = 408491 is a prime.

It is a super-2 number, since 2×539563² = 582256461938, which contains 22 as substring.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 645 + ... + 1222.

2⁵³⁹⁵⁶³ is an apocalyptic number.

539563 is a deficient number, since it is larger than the sum of its proper divisors (33913).

539563 is a wasteful number, since it uses less digits than its factorization.

539563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1884 counting only the distinct ones).

The product of its digits is 12150, while the sum is 31.

The square root of 539563 is about 734.5495218159. The cubic root of 539563 is about 81.4105558937.

The spelling of 539563 in words is "five hundred thirty-nine thousand, five hundred sixty-three".