4255643 has 8 divisors (see below), whose sum is σ = 4902912. Its totient is φ = 3618216.

The previous prime is 4255637. The next prime is 4255673. The reversal of 4255643 is 3465524.

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

It is not a de Polignac number, because 4255643 - 2⁶ = 4255579 is a prime.

It is a super-2 number, since 2×4255643² = 36220994686898, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4² + 2¹¹ + 5 + 5 + 6³ + 4¹¹ + 3¹⁰ .

It is not an unprimeable number, because it can be changed into a prime (4255673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1505 + ... + 3282.

It is an arithmetic number, because the mean of its divisors is an integer number (612864).

Almost surely, 2^4255643 is an apocalyptic number.

4255643 is a deficient number, since it is larger than the sum of its proper divisors (647269).

4255643 is a wasteful number, since it uses less digits than its factorization.

4255643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921.

The product of its digits is 14400, while the sum is 29.

The square root of 4255643 is about 2062.9209873381. The cubic root of 4255643 is about 162.0522490613.

The spelling of 4255643 in words is "four million, two hundred fifty-five thousand, six hundred forty-three".