545263 has 4 divisors (see below), whose sum is σ = 547560. Its totient is φ = 542968.

The previous prime is 545257. The next prime is 545267. The reversal of 545263 is 362545.

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

It is a cyclic number.

It is not a de Polignac number, because 545263 - 2⁵ = 545231 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745 + ... + 1282.

It is an arithmetic number, because the mean of its divisors is an integer number (136890).

2⁵⁴⁵²⁶³ is an apocalyptic number.

545263 is a deficient number, since it is larger than the sum of its proper divisors (2297).

545263 is a wasteful number, since it uses less digits than its factorization.

545263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296.

The product of its digits is 3600, while the sum is 25.

The square root of 545263 is about 738.4192576037. The cubic root of 545263 is about 81.6962288275.

It can be divided in two parts, 545 and 263, that added together give a palindrome (808).

The spelling of 545263 in words is "five hundred forty-five thousand, two hundred sixty-three".