544545 has 12 divisors (see below), whose sum is σ = 943956. Its totient is φ = 290400.

The previous prime is 544543. The next prime is 544549. The reversal of 544545 is 545445.

544545 is nontrivially palindromic in base 2.

It can be written as a sum of positive squares in 2 ways, for example, as 431649 + 112896 = 657^2 + 336^2 .

It is not a de Polignac number, because 544545 - 2¹ = 544543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (544543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6006 + ... + 6095.

It is an arithmetic number, because the mean of its divisors is an integer number (78663).

2⁵⁴⁴⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

544545 is a deficient number, since it is larger than the sum of its proper divisors (399411).

544545 is a wasteful number, since it uses less digits than its factorization.

544545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12112 (or 12109 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 544545 is about 737.9329237810. The cubic root of 544545 is about 81.6603539940.

Subtracting 544545 from its reverse (545445), we obtain a square (900 = 30²).

It can be divided in two parts, 5445 and 45, that multiplied together give a square (245025 = 495²).

The spelling of 544545 in words is "five hundred forty-four thousand, five hundred forty-five".