4225643 has 4 divisors (see below), whose sum is σ = 4238520. Its totient is φ = 4212768.

The previous prime is 4225633. The next prime is 4225649. The reversal of 4225643 is 3465224.

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

It is a cyclic number.

It is not a de Polignac number, because 4225643 - 2¹⁴ = 4209259 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4225649) 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, 5933 + ... + 6606.

It is an arithmetic number, because the mean of its divisors is an integer number (1059630).

Almost surely, 2^4225643 is an apocalyptic number.

4225643 is a deficient number, since it is larger than the sum of its proper divisors (12877).

4225643 is a wasteful number, since it uses less digits than its factorization.

4225643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12876.

The product of its digits is 5760, while the sum is 26.

The square root of 4225643 is about 2055.6368842770. The cubic root of 4225643 is about 161.6705569381.

The spelling of 4225643 in words is "four million, two hundred twenty-five thousand, six hundred forty-three".