531563 has 8 divisors (see below), whose sum is σ = 567120. Its totient is φ = 496800.

The previous prime is 531551. The next prime is 531569. The reversal of 531563 is 365135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 531563 - 2⁴ = 531547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1781 + ... + 2057.

It is an arithmetic number, because the mean of its divisors is an integer number (70890).

2⁵³¹⁵⁶³ is an apocalyptic number.

531563 is a deficient number, since it is larger than the sum of its proper divisors (35557).

531563 is a wasteful number, since it uses less digits than its factorization.

531563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397.

The product of its digits is 1350, while the sum is 23.

The square root of 531563 is about 729.0836714671. The cubic root of 531563 is about 81.0061977679.

Adding to 531563 its reverse (365135), we get a palindrome (896698).

The spelling of 531563 in words is "five hundred thirty-one thousand, five hundred sixty-three".