It is a self number, because there is not a number n which added to its sum of digits gives 2553540.
It is a congruent number.
22553540 is an apocalyptic number.
2553540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2553540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4027968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2553540 is a wasteful number, since it uses less digits than its factorization.
2553540 is an evil number, because the sum of its binary digits is even.
The square root of 2553540 is about 1597.9799748432. The cubic root of 2553540 is about 136.6829116786.
The spelling of 2553540 in words is "two million, five hundred fifty-three thousand, five hundred forty".