545523 has 16 divisors (see below), whose sum is σ = 809472. Its totient is φ = 324000.

The previous prime is 545521. The next prime is 545527. The reversal of 545523 is 325545.

545523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 545523 - 2¹ = 545521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545493 and 545502.

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 in 15 ways as a sum of consecutive naturals, for example, 1878 + ... + 2148.

It is an arithmetic number, because the mean of its divisors is an integer number (50592).

2⁵⁴⁵⁵²³ is an apocalyptic number.

545523 is a deficient number, since it is larger than the sum of its proper divisors (263949).

545523 is a wasteful number, since it uses less digits than its factorization.

545523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346.

The product of its digits is 3000, while the sum is 24.

The square root of 545523 is about 738.5952883684. The cubic root of 545523 is about 81.7092119471.

The spelling of 545523 in words is "five hundred forty-five thousand, five hundred twenty-three".