275911 has 2 divisors, whose sum is σ = 275912. Its totient is φ = 275910.

The previous prime is 275897. The next prime is 275917. The reversal of 275911 is 119572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 275911 - 2⁷ = 275783 is a prime.

It is a super-2 number, since 2×275911² = 152253759842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275917) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137955 + 137956.

It is an arithmetic number, because the mean of its divisors is an integer number (137956).

2²⁷⁵⁹¹¹ is an apocalyptic number.

275911 is a deficient number, since it is larger than the sum of its proper divisors (1).

275911 is an equidigital number, since it uses as much as digits as its factorization.

275911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 630, while the sum is 25.

The square root of 275911 is about 525.2723103306. The cubic root of 275911 is about 65.1013016069.

The spelling of 275911 in words is "two hundred seventy-five thousand, nine hundred eleven".