254857 has 2 divisors, whose sum is σ = 254858. Its totient is φ = 254856.

The previous prime is 254833. The next prime is 254869. The reversal of 254857 is 758452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254016 + 841 = 504^2 + 29^2 .

It is a cyclic number.

It is not a de Polignac number, because 254857 - 2⁷ = 254729 is a prime.

It is not a weakly prime, because it can be changed into another prime (254827) 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, 127428 + 127429.

It is an arithmetic number, because the mean of its divisors is an integer number (127429).

2²⁵⁴⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

254857 is a deficient number, since it is larger than the sum of its proper divisors (1).

254857 is an equidigital number, since it uses as much as digits as its factorization.

254857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11200, while the sum is 31.

The square root of 254857 is about 504.8336359634. The cubic root of 254857 is about 63.4014011174.

It can be divided in two parts, 254 and 857, that added together give a palindrome (1111).

The spelling of 254857 in words is "two hundred fifty-four thousand, eight hundred fifty-seven".