It is a self number, because there is not a number n which added to its sum of digits gives 5271540.
It is a congruent number.
It is an unprimeable number.
Almost surely, 25271540 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 5271540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7460544).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
5271540 is a wasteful number, since it uses less digits than its factorization.
5271540 is an odious number, because the sum of its binary digits is odd.
The square root of 5271540 is about 2295.9834494177. The cubic root of 5271540 is about 174.0387019209.
The spelling of 5271540 in words is "five million, two hundred seventy-one thousand, five hundred forty".