27257 has 4 divisors (see below), whose sum is σ = 27636. Its totient is φ = 26880.

The previous prime is 27253. The next prime is 27259. The reversal of 27257 is 75272.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15376 + 11881 = 124^2 + 109^2 .

It is a cyclic number.

It is not a de Polignac number, because 27257 - 2² = 27253 is a prime.

It is a super-6 number, since 6×27257⁶ (a number of 28 digits) contains 666666 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 27257.

It is not an unprimeable number, because it can be changed into a prime (27253) 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, 44 + ... + 237.

It is an arithmetic number, because the mean of its divisors is an integer number (6909).

2²⁷²⁵⁷ is an apocalyptic number.

It is an amenable number.

27257 is a deficient number, since it is larger than the sum of its proper divisors (379).

27257 is an equidigital number, since it uses as much as digits as its factorization.

27257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378.

The product of its digits is 980, while the sum is 23.

The square root of 27257 is about 165.0969412194. The cubic root of 27257 is about 30.0948847648.

The spelling of 27257 in words is "twenty-seven thousand, two hundred fifty-seven".