855255 has 32 divisors (see below), whose sum is σ = 1488384. Its totient is φ = 418176.

The previous prime is 855241. The next prime is 855269. The reversal of 855255 is 552558.

It is an interprime number because it is at equal distance from previous prime (855241) and next prime (855269).

It is not a de Polignac number, because 855255 - 2⁶ = 855191 is a prime.

It is a super-2 number, since 2×855255² = 1462922230050, which contains 22 as substring.

855255 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 12732 + ... + 12798.

It is an arithmetic number, because the mean of its divisors is an integer number (46512).

2⁸⁵⁵²⁵⁵ is an apocalyptic number.

855255 is a deficient number, since it is larger than the sum of its proper divisors (633129).

855255 is a wasteful number, since it uses less digits than its factorization.

855255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135.

The product of its digits is 10000, while the sum is 30.

The square root of 855255 is about 924.7999783737. The cubic root of 855255 is about 94.9216343581.

The spelling of 855255 in words is "eight hundred fifty-five thousand, two hundred fifty-five".