4255605 has 32 divisors (see below), whose sum is σ = 7833600. Its totient is φ = 2189376.

The previous prime is 4255597. The next prime is 4255609. The reversal of 4255605 is 5065524.

4255605 is a `hidden beast` number, since 4 + 2 + 55 + 605 = 666.

It is not a de Polignac number, because 4255605 - 2³ = 4255597 is a prime.

It is a super-2 number, since 2×4255605² = 36220347832050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255609) 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 31 ways as a sum of consecutive naturals, for example, 3372 + ... + 4458.

It is an arithmetic number, because the mean of its divisors is an integer number (244800).

Almost surely, 2^4255605 is an apocalyptic number.

4255605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4255605 is the 1305-th heptagonal number.

It is an amenable number.

4255605 is a deficient number, since it is larger than the sum of its proper divisors (3577995).

4255605 is a wasteful number, since it uses less digits than its factorization.

4255605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 4255605 is about 2062.9117770763. The cubic root of 4255605 is about 162.0517667210.

The spelling of 4255605 in words is "four million, two hundred fifty-five thousand, six hundred five".