275591 has 2 divisors, whose sum is σ = 275592. Its totient is φ = 275590.

The previous prime is 275581. The next prime is 275593. The reversal of 275591 is 195572.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275591 is a prime.

Together with 275593, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137795 + 137796.

It is an arithmetic number, because the mean of its divisors is an integer number (137796).

2²⁷⁵⁵⁹¹ is an apocalyptic number.

275591 is a deficient number, since it is larger than the sum of its proper divisors (1).

275591 is an equidigital number, since it uses as much as digits as its factorization.

275591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150, while the sum is 29.

The square root of 275591 is about 524.9676180490. The cubic root of 275591 is about 65.0761238316.

The spelling of 275591 in words is "two hundred seventy-five thousand, five hundred ninety-one".