544505 has 8 divisors (see below), whose sum is σ = 703752. Its totient is φ = 402048.

The previous prime is 544501. The next prime is 544513. The reversal of 544505 is 505445.

It can be written as a sum of positive squares in 4 ways, for example, as 2809 + 541696 = 53^2 + 736^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 544505 - 2² = 544501 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 (544501) 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 7 ways as a sum of consecutive naturals, for example, 4124 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (87969).

2⁵⁴⁴⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

544505 is a deficient number, since it is larger than the sum of its proper divisors (159247).

544505 is a wasteful number, since it uses less digits than its factorization.

544505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8395.

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

The square root of 544505 is about 737.9058205489. The cubic root of 544505 is about 81.6583544689.

Subtracting from 544505 its reverse (505445), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 544505 in words is "five hundred forty-four thousand, five hundred five".