276257 has 2 divisors, whose sum is σ = 276258. Its totient is φ = 276256.

The previous prime is 276251. The next prime is 276277. The reversal of 276257 is 752672.

It is a happy number.

276257 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274576 + 1681 = 524^2 + 41^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (276251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138128 + 138129.

It is an arithmetic number, because the mean of its divisors is an integer number (138129).

2²⁷⁶²⁵⁷ is an apocalyptic number.

It is an amenable number.

276257 is a deficient number, since it is larger than the sum of its proper divisors (1).

276257 is an equidigital number, since it uses as much as digits as its factorization.

276257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5880, while the sum is 29.

The square root of 276257 is about 525.6015601195. The cubic root of 276257 is about 65.1285031818.

The spelling of 276257 in words is "two hundred seventy-six thousand, two hundred fifty-seven".