503563 has 2 divisors, whose sum is σ = 503564. Its totient is φ = 503562.

The previous prime is 503551. The next prime is 503593. The reversal of 503563 is 365305.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 503563 - 2¹³ = 495371 is a prime.

It is not a weakly prime, because it can be changed into another prime (503543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251781 + 251782.

It is an arithmetic number, because the mean of its divisors is an integer number (251782).

2⁵⁰³⁵⁶³ is an apocalyptic number.

503563 is a deficient number, since it is larger than the sum of its proper divisors (1).

503563 is an equidigital number, since it uses as much as digits as its factorization.

503563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 503563 is about 709.6217302197. The cubic root of 503563 is about 79.5581368721.

Adding to 503563 its reverse (365305), we get a palindrome (868868).

The spelling of 503563 in words is "five hundred three thousand, five hundred sixty-three".