275566 has 8 divisors (see below), whose sum is σ = 415944. Its totient is φ = 136920.

The previous prime is 275549. The next prime is 275573. The reversal of 275566 is 665572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96 + ... + 748.

It is an arithmetic number, because the mean of its divisors is an integer number (51993).

2²⁷⁵⁵⁶⁶ is an apocalyptic number.

275566 is a deficient number, since it is larger than the sum of its proper divisors (140378).

275566 is a wasteful number, since it uses less digits than its factorization.

275566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866.

The product of its digits is 12600, while the sum is 31.

The square root of 275566 is about 524.9438065165. The cubic root of 275566 is about 65.0741559973.

It can be divided in two parts, 275 and 566, that added together give a square (841 = 29²).

The spelling of 275566 in words is "two hundred seventy-five thousand, five hundred sixty-six".