536531 has 2 divisors, whose sum is σ = 536532. Its totient is φ = 536530.

The previous prime is 536513. The next prime is 536533. The reversal of 536531 is 135635.

Together with previous prime (536513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 536531 - 2⁶ = 536467 is a prime.

It is a super-2 number, since 2×536531² = 575731027922, which contains 22 as substring.

Together with 536533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 536497 and 536506.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 536531.

It is not a weakly prime, because it can be changed into another prime (536533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268265 + 268266.

It is an arithmetic number, because the mean of its divisors is an integer number (268266).

2⁵³⁶⁵³¹ is an apocalyptic number.

536531 is a deficient number, since it is larger than the sum of its proper divisors (1).

536531 is an equidigital number, since it uses as much as digits as its factorization.

536531 is an odious number, because the sum of its binary digits is odd.

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

The square root of 536531 is about 732.4827643023. The cubic root of 536531 is about 81.2577775592.

The spelling of 536531 in words is "five hundred thirty-six thousand, five hundred thirty-one".