855516 has 12 divisors (see below), whose sum is σ = 1996232. Its totient is φ = 285168.

The previous prime is 855511. The next prime is 855521. The reversal of 855516 is 615558.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (855511) and next prime (855521).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 855516.

It is not an unprimeable number, because it can be changed into a prime (855511) by changing a digit.

855516 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 35635 + ... + 35658.

2⁸⁵⁵⁵¹⁶ is an apocalyptic number.

It is an amenable number.

855516 is an abundant number, since it is smaller than the sum of its proper divisors (1140716).

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

855516 is a wasteful number, since it uses less digits than its factorization.

855516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71300 (or 71298 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 855516 is about 924.9410792045. The cubic root of 855516 is about 94.9312891889.

The spelling of 855516 in words is "eight hundred fifty-five thousand, five hundred sixteen".