4255540 has 12 divisors (see below), whose sum is σ = 8936676. Its totient is φ = 1702208.

The previous prime is 4255523. The next prime is 4255541. The reversal of 4255540 is 455524.

4255540 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3283344 + 972196 = 1812^2 + 986^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255541) 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, 106369 + ... + 106408.

It is an arithmetic number, because the mean of its divisors is an integer number (744723).

Almost surely, 2^4255540 is an apocalyptic number.

It is an amenable number.

4255540 is an abundant number, since it is smaller than the sum of its proper divisors (4681136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4255540 is a wasteful number, since it uses less digits than its factorization.

4255540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212786 (or 212784 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 4255540 is about 2062.8960225857. The cubic root of 4255540 is about 162.0509416587.

The spelling of 4255540 in words is "four million, two hundred fifty-five thousand, five hundred forty".