855522212 has 18 divisors (see below), whose sum is σ = 1585679382. Its totient is φ = 402485184.

The previous prime is 855522211. The next prime is 855522257. The reversal of 855522212 is 212225558.

It can be written as a sum of positive squares in only one way, i.e., 805197376 + 50324836 = 28376^2 + 7094^2 .

It is not an unprimeable number, because it can be changed into a prime (855522211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239423 + ... + 242969.

It is an arithmetic number, because the mean of its divisors is an integer number (88093299).

Almost surely, 2^855522212 is an apocalyptic number.

It is an amenable number.

855522212 is a deficient number, since it is larger than the sum of its proper divisors (730157170).

855522212 is an equidigital number, since it uses as much as digits as its factorization.

855522212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7115 (or 3566 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 855522212 is about 29249.3113081317. The cubic root of 855522212 is about 949.3151895734.

The spelling of 855522212 in words is "eight hundred fifty-five million, five hundred twenty-two thousand, two hundred twelve".