2805535806 has 32 divisors (see below), whose sum is σ = 6146007840. Its totient is φ = 849816576.

The previous prime is 2805535783. The next prime is 2805535847. The reversal of 2805535806 is 6085355082.

2805535806 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471271 + ... + 477186.

It is an arithmetic number, because the mean of its divisors is an integer number (192062745).

Almost surely, 2^2805535806 is an apocalyptic number.

2805535806 is an abundant number, since it is smaller than the sum of its proper divisors (3340472034).

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

2805535806 is a wasteful number, since it uses less digits than its factorization.

2805535806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948508.

The product of its (nonzero) digits is 288000, while the sum is 42.

The square root of 2805535806 is about 52967.3088423416. The cubic root of 2805535806 is about 1410.3880034755.

The spelling of 2805535806 in words is "two billion, eight hundred five million, five hundred thirty-five thousand, eight hundred six".