4256155 has 4 divisors (see below), whose sum is σ = 5107392. Its totient is φ = 3404920.

The previous prime is 4256141. The next prime is 4256159. The reversal of 4256155 is 5516524.

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

It is not a de Polignac number, because 4256155 - 2¹⁷ = 4125083 is a prime.

It is a super-2 number, since 2×4256155² = 36229710768050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4256159) 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, 425611 + ... + 425620.

It is an arithmetic number, because the mean of its divisors is an integer number (1276848).

Almost surely, 2^4256155 is an apocalyptic number.

4256155 is a deficient number, since it is larger than the sum of its proper divisors (851237).

4256155 is an equidigital number, since it uses as much as digits as its factorization.

4256155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851236.

The product of its digits is 6000, while the sum is 28.

The square root of 4256155 is about 2063.0450794881. The cubic root of 4256155 is about 162.0587476816.

The spelling of 4256155 in words is "four million, two hundred fifty-six thousand, one hundred fifty-five".