275863 has 4 divisors (see below), whose sum is σ = 315280. Its totient is φ = 236448.

The previous prime is 275837. The next prime is 275881. The reversal of 275863 is 368572.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 275863 - 2¹³ = 267671 is a prime.

It is a super-2 number, since 2×275863² = 152200789538, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁸ + 7⁴ + 8⁴ + 5⁴ + 6² + 3⁸ .

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275813) 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, 19698 + ... + 19711.

It is an arithmetic number, because the mean of its divisors is an integer number (78820).

2²⁷⁵⁸⁶³ is an apocalyptic number.

275863 is a deficient number, since it is larger than the sum of its proper divisors (39417).

275863 is an equidigital number, since it uses as much as digits as its factorization.

275863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39416.

The product of its digits is 10080, while the sum is 31.

The square root of 275863 is about 525.2266177566. The cubic root of 275863 is about 65.0975261821.

The spelling of 275863 in words is "two hundred seventy-five thousand, eight hundred sixty-three".