4255778 has 8 divisors (see below), whose sum is σ = 6449772. Its totient is φ = 2105856.

The previous prime is 4255751. The next prime is 4255781. The reversal of 4255778 is 8775524.

It can be written as a sum of positive squares in 2 ways, for example, as 4068289 + 187489 = 2017^2 + 433^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4255778² = 36223292770568, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10775 + ... + 11162.

Almost surely, 2^4255778 is an apocalyptic number.

4255778 is a deficient number, since it is larger than the sum of its proper divisors (2193994).

4255778 is a wasteful number, since it uses less digits than its factorization.

4255778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22036.

The product of its digits is 78400, while the sum is 38.

The square root of 4255778 is about 2062.9537076726. The cubic root of 4255778 is about 162.0539626153.

The spelling of 4255778 in words is "four million, two hundred fifty-five thousand, seven hundred seventy-eight".