531568 has 10 divisors (see below), whose sum is σ = 1029944. Its totient is φ = 265776.

The previous prime is 531551. The next prime is 531569. The reversal of 531568 is 865135.

It is a congruent number.

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

531568 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16596 + ... + 16627.

2⁵³¹⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

531568 is a deficient number, since it is larger than the sum of its proper divisors (498376).

531568 is a wasteful number, since it uses less digits than its factorization.

531568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33231 (or 33225 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 531568 is about 729.0871004208. The cubic root of 531568 is about 81.0064517546.

The spelling of 531568 in words is "five hundred thirty-one thousand, five hundred sixty-eight".