It is a plaindrome in base 15.
It is an unprimeable number.
275562 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
275562 is a Friedman number, since it can be written as (7+2)^5*(5-2/6), using all its digits and the basic arithmetic operations.
2275562 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 275562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
275562 is an frugal number, since it uses more digits than its factorization.
275562 is an evil number, because the sum of its binary digits is even.
The square root of 275562 is about 524.9399965710. The cubic root of 275562 is about 65.0738411327.
Multiplying 275562 by its product of digits (4200), we get a square (1157360400 = 340202).
The spelling of 275562 in words is "two hundred seventy-five thousand, five hundred sixty-two".