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536539 = 563953

536539 has 4 divisors (see below), whose sum is σ = 538056. Its totient is φ = 535024.

The previous prime is 536533. The next prime is 536561. The reversal of 536539 is 935635.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 935635 = 5187127.

It is a cyclic number.

It is not a de Polignac number, because 536539 - 23 = 536531 is a prime.

It is a Smith number, since the sum of its digits (31) 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.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 536539.

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, 87 + ... + 1039.

It is an arithmetic number, because the mean of its divisors is an integer number (134514).

536539 is a Friedman number, since it can be written as 69*(3+3)^5-5, using all its digits and the basic arithmetic operations.

It is a vampire number, since it can be written as 563953 (with its own digits).

2536539 is an apocalyptic number.

536539 is a deficient number, since it is larger than the sum of its proper divisors (1517).

536539 is an equidigital number, since it uses as much as digits as its factorization.

536539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516.

The product of its digits is 12150, while the sum is 31.

The square root of 536539 is about 732.4882251613. The cubic root of 536539 is about 81.2581814247.

The spelling of 536539 in words is "five hundred thirty-six thousand, five hundred thirty-nine".

Divisors: 1 563 953 536539