It is a happy number.
It is a tau number, because it is divible by the number of its divisors (48).
It is a congruent number.
It is an unprimeable number.
561024 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2561024 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 561024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (808860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
561024 is a wasteful number, since it uses less digits than its factorization.
561024 is an odious number, because the sum of its binary digits is odd.
The square root of 561024 is about 749.0153536477. The cubic root of 561024 is about 82.4759158348.
Adding to 561024 its reverse (420165), we get a palindrome (981189).
The spelling of 561024 in words is "five hundred sixty-one thousand, twenty-four".