855512 has 16 divisors (see below), whose sum is σ = 1833360. Its totient is φ = 366624.

The previous prime is 855511. The next prime is 855521. The reversal of 855512 is 215558.

855512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855511) 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, 7583 + ... + 7694.

It is an arithmetic number, because the mean of its divisors is an integer number (114585).

2⁸⁵⁵⁵¹² is an apocalyptic number.

It is an amenable number.

855512 is an abundant number, since it is smaller than the sum of its proper divisors (977848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855512 is a wasteful number, since it uses less digits than its factorization.

855512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15290 (or 15286 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 855512 is about 924.9389169021. The cubic root of 855512 is about 94.9311412370.

The spelling of 855512 in words is "eight hundred fifty-five thousand, five hundred twelve".