4255855 has 4 divisors (see below), whose sum is σ = 5107032. Its totient is φ = 3404680.

The previous prime is 4255817. The next prime is 4255859. The reversal of 4255855 is 5585524.

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

It is a de Polignac number, because none of the positive numbers 2^k-4255855 is a prime.

It is a super-2 number, since 2×4255855² = 36224603562050, which contains 22 as substring.

It is a Duffinian number.

4255855 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4255855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425581 + ... + 425590.

It is an arithmetic number, because the mean of its divisors is an integer number (1276758).

Almost surely, 2^4255855 is an apocalyptic number.

4255855 is a deficient number, since it is larger than the sum of its proper divisors (851177).

4255855 is an equidigital number, since it uses as much as digits as its factorization.

4255855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851176.

The product of its digits is 40000, while the sum is 34.

The square root of 4255855 is about 2062.9723701494. The cubic root of 4255855 is about 162.0549399595.

The spelling of 4255855 in words is "four million, two hundred fifty-five thousand, eight hundred fifty-five".