805485855 has 16 divisors (see below), whose sum is σ = 1289161440. Its totient is φ = 429464448.

The previous prime is 805485851. The next prime is 805485871. The reversal of 805485855 is 558584508.

It is not a de Polignac number, because 805485855 - 2² = 805485851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805485851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66229 + ... + 77441.

It is an arithmetic number, because the mean of its divisors is an integer number (80572590).

Almost surely, 2^805485855 is an apocalyptic number.

805485855 is a deficient number, since it is larger than the sum of its proper divisors (483675585).

805485855 is a wasteful number, since it uses less digits than its factorization.

805485855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16010.

The product of its (nonzero) digits is 1280000, while the sum is 48.

The square root of 805485855 is about 28381.0826960495. The cubic root of 805485855 is about 930.4348584898.

The spelling of 805485855 in words is "eight hundred five million, four hundred eighty-five thousand, eight hundred fifty-five".