275562 has 40 divisors (see below), whose sum is σ = 708576. Its totient is φ = 78732.

The previous prime is 275549. The next prime is 275573. The reversal of 275562 is 265572.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (4200) is a multiple of the sum of its prime divisors (12).

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.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39363 + ... + 39369.

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).

275562 is an abundant number, since it is smaller than the sum of its proper divisors (433014).

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 sum of its prime factors is 36 (or 12 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

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".