1804255 has 4 divisors (see below), whose sum is σ = 2165112. Its totient is φ = 1443400.

The previous prime is 1804249. The next prime is 1804267. The reversal of 1804255 is 5524081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5524081 = 43 ⋅128467.

It is not a de Polignac number, because 1804255 - 2⁹ = 1803743 is a prime.

It is a super-2 number, since 2×1804255² = 6510672210050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180421 + ... + 180430.

It is an arithmetic number, because the mean of its divisors is an integer number (541278).

2^1804255 is an apocalyptic number.

1804255 is a deficient number, since it is larger than the sum of its proper divisors (360857).

1804255 is an equidigital number, since it uses as much as digits as its factorization.

1804255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360856.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1804255 is about 1343.2255953487. The cubic root of 1804255 is about 121.7398154816.

The spelling of 1804255 in words is "one million, eight hundred four thousand, two hundred fifty-five".