546565 has 4 divisors (see below), whose sum is σ = 655884. Its totient is φ = 437248.

The previous prime is 546547. The next prime is 546569. The reversal of 546565 is 565645.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93636 + 452929 = 306^2 + 673^2 .

It is a cyclic number.

It is not a de Polignac number, because 546565 - 2⁹ = 546053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546569) 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, 54652 + ... + 54661.

It is an arithmetic number, because the mean of its divisors is an integer number (163971).

2⁵⁴⁶⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

546565 is a deficient number, since it is larger than the sum of its proper divisors (109319).

546565 is a wasteful number, since it uses less digits than its factorization.

546565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109318.

The product of its digits is 18000, while the sum is 31.

The square root of 546565 is about 739.3003449208. The cubic root of 546565 is about 81.7612029399.

It can be divided in two parts, 546 and 565, that added together give a palindrome (1111).

The spelling of 546565 in words is "five hundred forty-six thousand, five hundred sixty-five".