275540 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.
It is a plaindrome in base 12.
It is a nialpdrome in base 13.
It is a congruent number.
275540 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2275540 is an apocalyptic number.
275540 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 275540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
275540 is a wasteful number, since it uses less digits than its factorization.
275540 is an odious number, because the sum of its binary digits is odd.
The square root of 275540 is about 524.9190413769. The cubic root of 275540 is about 65.0721093233.
The spelling of 275540 in words is "two hundred seventy-five thousand, five hundred forty".