534521 has 4 divisors (see below), whose sum is σ = 575652. Its totient is φ = 493392.

The previous prime is 534511. The next prime is 534529. The reversal of 534521 is 125435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125435 = 5 ⋅25087.

It can be written as a sum of positive squares in 2 ways, for example, as 215296 + 319225 = 464^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 534521 - 2¹⁴ = 518137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 534493 and 534502.

It is not an unprimeable number, because it can be changed into a prime (534529) 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 in 3 ways as a sum of consecutive naturals, for example, 20546 + ... + 20571.

It is an arithmetic number, because the mean of its divisors is an integer number (143913).

2⁵³⁴⁵²¹ is an apocalyptic number.

It is an amenable number.

534521 is a deficient number, since it is larger than the sum of its proper divisors (41131).

534521 is a wasteful number, since it uses less digits than its factorization.

534521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41130.

The product of its digits is 600, while the sum is 20.

The square root of 534521 is about 731.1094309336. The cubic root of 534521 is about 81.1561788839.

Adding to 534521 its reverse (125435), we get a palindrome (659956).

The spelling of 534521 in words is "five hundred thirty-four thousand, five hundred twenty-one".