275568 has 20 divisors (see below), whose sum is σ = 712008. Its totient is φ = 91840.

The previous prime is 275549. The next prime is 275573. The reversal of 275568 is 865572.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

275568 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2823 + ... + 2918.

2²⁷⁵⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

275568 is an abundant number, since it is smaller than the sum of its proper divisors (436440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275568 is a wasteful number, since it uses less digits than its factorization.

275568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5752 (or 5746 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 275568 is about 524.9457114788. The cubic root of 275568 is about 65.0743134284.

The spelling of 275568 in words is "two hundred seventy-five thousand, five hundred sixty-eight".