1025556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
21025556 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 1025556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1417920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1025556 is a wasteful number, since it uses less digits than its factorization.
1025556 is an evil number, because the sum of its binary digits is even.
The square root of 1025556 is about 1012.6973881669. The cubic root of 1025556 is about 100.8447112054.
The spelling of 1025556 in words is "one million, twenty-five thousand, five hundred fifty-six".