855212285 has 32 divisors (see below), whose sum is σ = 1103155200. Its totient is φ = 634217472.

The previous prime is 855212273. The next prime is 855212297. The reversal of 855212285 is 582212558.

It is an interprime number because it is at equal distance from previous prime (855212273) and next prime (855212297).

It is a cyclic number.

It is not a de Polignac number, because 855212285 - 2⁴ = 855212269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2450291 + ... + 2450639.

It is an arithmetic number, because the mean of its divisors is an integer number (34473600).

Almost surely, 2^855212285 is an apocalyptic number.

855212285 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

855212285 is a deficient number, since it is larger than the sum of its proper divisors (247942915).

855212285 is a wasteful number, since it uses less digits than its factorization.

855212285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725.

The product of its digits is 64000, while the sum is 38.

The square root of 855212285 is about 29244.0128060429. The cubic root of 855212285 is about 949.2005407113.

The spelling of 855212285 in words is "eight hundred fifty-five million, two hundred twelve thousand, two hundred eighty-five".