531536 has 20 divisors (see below), whose sum is σ = 1041600. Its totient is φ = 262752.

The previous prime is 531521. The next prime is 531547. The reversal of 531536 is 635135.

It is a congruent number.

It is an unprimeable number.

531536 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105 + ... + 2343.

It is an arithmetic number, because the mean of its divisors is an integer number (52080).

2⁵³¹⁵³⁶ is an apocalyptic number.

It is an amenable number.

531536 is a deficient number, since it is larger than the sum of its proper divisors (510064).

531536 is a wasteful number, since it uses less digits than its factorization.

531536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 380 counting only the distinct ones).

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

The square root of 531536 is about 729.0651548387. The cubic root of 531536 is about 81.0048262125.

The spelling of 531536 in words is "five hundred thirty-one thousand, five hundred thirty-six".