539503 has 2 divisors, whose sum is σ = 539504. Its totient is φ = 539502.

The previous prime is 539501. The next prime is 539507. The reversal of 539503 is 305935.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 539503 - 2¹ = 539501 is a prime.

Together with 539501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (539501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269751 + 269752.

It is an arithmetic number, because the mean of its divisors is an integer number (269752).

2⁵³⁹⁵⁰³ is an apocalyptic number.

539503 is a deficient number, since it is larger than the sum of its proper divisors (1).

539503 is an equidigital number, since it uses as much as digits as its factorization.

539503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025, while the sum is 25.

The square root of 539503 is about 734.5086793224. The cubic root of 539503 is about 81.4075381340.

The spelling of 539503 in words is "five hundred thirty-nine thousand, five hundred three".