855506 has 8 divisors (see below), whose sum is σ = 1314684. Its totient is φ = 417280.

The previous prime is 855499. The next prime is 855511. The reversal of 855506 is 605558.

855506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 819025 + 36481 = 905^2 + 191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

855506 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5135 + ... + 5298.

2⁸⁵⁵⁵⁰⁶ is an apocalyptic number.

855506 is a deficient number, since it is larger than the sum of its proper divisors (459178).

855506 is a wasteful number, since it uses less digits than its factorization.

855506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10476.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 855506 is about 924.9356734390. The cubic root of 855506 is about 94.9309193082.

The spelling of 855506 in words is "eight hundred fifty-five thousand, five hundred six".