544561 has 8 divisors (see below), whose sum is σ = 584064. Its totient is φ = 505920.

The previous prime is 544549. The next prime is 544601. The reversal of 544561 is 165445.

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

It is not a de Polignac number, because 544561 - 2¹⁵ = 511793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1596 + ... + 1906.

It is an arithmetic number, because the mean of its divisors is an integer number (73008).

2⁵⁴⁴⁵⁶¹ is an apocalyptic number.

It is an amenable number.

544561 is a deficient number, since it is larger than the sum of its proper divisors (39503).

544561 is a wasteful number, since it uses less digits than its factorization.

544561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431.

The product of its digits is 2400, while the sum is 25.

The square root of 544561 is about 737.9437647951. The cubic root of 544561 is about 81.6611537766.

The spelling of 544561 in words is "five hundred forty-four thousand, five hundred sixty-one".