4055855 has 4 divisors (see below), whose sum is σ = 4867032. Its totient is φ = 3244680.

The previous prime is 4055851. The next prime is 4055893. The reversal of 4055855 is 5585504.

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

It is not a de Polignac number, because 4055855 - 2² = 4055851 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4055851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405581 + ... + 405590.

It is an arithmetic number, because the mean of its divisors is an integer number (1216758).

Almost surely, 2^4055855 is an apocalyptic number.

4055855 is a deficient number, since it is larger than the sum of its proper divisors (811177).

4055855 is an equidigital number, since it uses as much as digits as its factorization.

4055855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811176.

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 4055855 is about 2013.9153408224. The cubic root of 4055855 is about 159.4755615509.

The spelling of 4055855 in words is "four million, fifty-five thousand, eight hundred fifty-five".