4255558 has 4 divisors (see below), whose sum is σ = 6383340. Its totient is φ = 2127778.

The previous prime is 4255553. The next prime is 4255561. The reversal of 4255558 is 8555524.

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

It is a super-3 number, since 3×4255558³ (a number of 21 digits) contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255553) 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 as a sum of consecutive naturals, namely, 1063888 + ... + 1063891.

It is an arithmetic number, because the mean of its divisors is an integer number (1595835).

Almost surely, 2^4255558 is an apocalyptic number.

4255558 is a deficient number, since it is larger than the sum of its proper divisors (2127782).

4255558 is a wasteful number, since it uses less digits than its factorization.

4255558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127781.

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

The square root of 4255558 is about 2062.9003853798. The cubic root of 4255558 is about 162.0511701383.

Subtracting from 4255558 its sum of digits (34), we obtain a palindrome (4255524).

The spelling of 4255558 in words is "four million, two hundred fifty-five thousand, five hundred fifty-eight".