4255989 has 8 divisors (see below), whose sum is σ = 5921472. Its totient is φ = 2713920.

The previous prime is 4255987. The next prime is 4255997. The reversal of 4255989 is 9895524.

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

It is not a de Polignac number, because 4255989 - 2¹ = 4255987 is a prime.

It is a super-2 number, since 2×4255989² = 36226884736242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4255989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255987) 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 7 ways as a sum of consecutive naturals, for example, 30772 + ... + 30909.

It is an arithmetic number, because the mean of its divisors is an integer number (740184).

Almost surely, 2^4255989 is an apocalyptic number.

It is an amenable number.

4255989 is a deficient number, since it is larger than the sum of its proper divisors (1665483).

4255989 is a wasteful number, since it uses less digits than its factorization.

4255989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61707.

The product of its digits is 129600, while the sum is 42.

The square root of 4255989 is about 2063.0048473040. The cubic root of 4255989 is about 162.0566407642.

The spelling of 4255989 in words is "four million, two hundred fifty-five thousand, nine hundred eighty-nine".