275533 has 4 divisors (see below), whose sum is σ = 276640. Its totient is φ = 274428.

The previous prime is 275531. The next prime is 275543. The reversal of 275533 is 335572.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 275533 - 2¹ = 275531 is a prime.

It is a super-3 number, since 3×275533³ = 62754101699533311, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 275498 and 275507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16 + ... + 742.

It is an arithmetic number, because the mean of its divisors is an integer number (69160).

2²⁷⁵⁵³³ is an apocalyptic number.

It is an amenable number.

275533 is a deficient number, since it is larger than the sum of its proper divisors (1107).

275533 is an equidigital number, since it uses as much as digits as its factorization.

275533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106.

The product of its digits is 3150, while the sum is 25.

The square root of 275533 is about 524.9123736396. The cubic root of 275533 is about 65.0715582737.

It can be divided in two parts, 27553 and 3, that added together give a square (27556 = 166²).

The spelling of 275533 in words is "two hundred seventy-five thousand, five hundred thirty-three".