4255817 has 2 divisors, whose sum is σ = 4255818. Its totient is φ = 4255816.

The previous prime is 4255807. The next prime is 4255859. The reversal of 4255817 is 7185524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2627641 + 1628176 = 1621^2 + 1276^2 .

It is a cyclic number.

It is not a de Polignac number, because 4255817 - 2⁸ = 4255561 is a prime.

It is a super-2 number, since 2×4255817² = 36223956674978, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4255807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2127908 + 2127909.

It is an arithmetic number, because the mean of its divisors is an integer number (2127909).

Almost surely, 2^4255817 is an apocalyptic number.

It is an amenable number.

4255817 is a deficient number, since it is larger than the sum of its proper divisors (1).

4255817 is an equidigital number, since it uses as much as digits as its factorization.

4255817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11200, while the sum is 32.

The square root of 4255817 is about 2062.9631601170. The cubic root of 4255817 is about 162.0544576353.

The spelling of 4255817 in words is "four million, two hundred fifty-five thousand, eight hundred seventeen".