536521 has 4 divisors (see below), whose sum is σ = 559872. Its totient is φ = 513172.

The previous prime is 536513. The next prime is 536531. The reversal of 536521 is 125635.

It is a happy number.

536521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 125635 = 5 ⋅25127.

It is a cyclic number.

It is not a de Polignac number, because 536521 - 2³ = 536513 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

536521 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 536492 and 536501.

It is not an unprimeable number, because it can be changed into a prime (536531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11641 + ... + 11686.

It is an arithmetic number, because the mean of its divisors is an integer number (139968).

2⁵³⁶⁵²¹ is an apocalyptic number.

It is an amenable number.

536521 is a deficient number, since it is larger than the sum of its proper divisors (23351).

536521 is a wasteful number, since it uses less digits than its factorization.

536521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23350.

The product of its digits is 900, while the sum is 22.

The square root of 536521 is about 732.4759381714. The cubic root of 536521 is about 81.2572727218.

The spelling of 536521 in words is "five hundred thirty-six thousand, five hundred twenty-one".