544531 has 4 divisors (see below), whose sum is σ = 586432. Its totient is φ = 502632.

The previous prime is 544517. The next prime is 544543. The reversal of 544531 is 135445.

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

It is not a de Polignac number, because 544531 - 2⁷ = 544403 is a prime.

It is a super-2 number, since 2×544531² = 593028019922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

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 3 ways as a sum of consecutive naturals, for example, 20931 + ... + 20956.

It is an arithmetic number, because the mean of its divisors is an integer number (146608).

2⁵⁴⁴⁵³¹ is an apocalyptic number.

544531 is a deficient number, since it is larger than the sum of its proper divisors (41901).

544531 is a wasteful number, since it uses less digits than its factorization.

544531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41900.

The product of its digits is 1200, while the sum is 22.

The square root of 544531 is about 737.9234377630. The cubic root of 544531 is about 81.6596541713.

Adding to 544531 its reverse (135445), we get a palindrome (679976).

It can be divided in two parts, 5445 and 31, that added together give a square (5476 = 74²).

The spelling of 544531 in words is "five hundred forty-four thousand, five hundred thirty-one".