545522 has 4 divisors (see below), whose sum is σ = 818286. Its totient is φ = 272760.

The previous prime is 545521. The next prime is 545527. The reversal of 545522 is 225545.

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

It can be written as a sum of positive squares in only one way, i.e., 516961 + 28561 = 719^2 + 169^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 545522.

It is not an unprimeable number, because it can be changed into a prime (545521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136379 + ... + 136382.

2⁵⁴⁵⁵²² is an apocalyptic number.

545522 is a deficient number, since it is larger than the sum of its proper divisors (272764).

545522 is a wasteful number, since it uses less digits than its factorization.

545522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272763.

The product of its digits is 2000, while the sum is 23.

The square root of 545522 is about 738.5946114074. The cubic root of 545522 is about 81.7091620199.

Adding to 545522 its sum of digits (23), we get a palindrome (545545).

The spelling of 545522 in words is "five hundred forty-five thousand, five hundred twenty-two".