4255999 has 8 divisors (see below), whose sum is σ = 4768848. Its totient is φ = 3764160.

The previous prime is 4255997. The next prime is 4256003. The reversal of 4255999 is 9995524.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4255999 - 2¹ = 4255997 is a prime.

It is a super-2 number, since 2×4255999² = 36227054976002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255997) 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, 4822 + ... + 5635.

It is an arithmetic number, because the mean of its divisors is an integer number (596106).

Almost surely, 2^4255999 is an apocalyptic number.

4255999 is a deficient number, since it is larger than the sum of its proper divisors (512849).

4255999 is a wasteful number, since it uses less digits than its factorization.

4255999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505.

The product of its digits is 145800, while the sum is 43.

The square root of 4255999 is about 2063.0072709518. The cubic root of 4255999 is about 162.0567676885.

The spelling of 4255999 in words is "four million, two hundred fifty-five thousand, nine hundred ninety-nine".