47805855 has 16 divisors (see below), whose sum is σ = 76793184. Its totient is φ = 25395200.

The previous prime is 47805839. The next prime is 47805859. The reversal of 47805855 is 55850874.

It is not a de Polignac number, because 47805855 - 2⁴ = 47805839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47805859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2346 + ... + 10055.

It is an arithmetic number, because the mean of its divisors is an integer number (4799574).

Almost surely, 2^47805855 is an apocalyptic number.

47805855 is a deficient number, since it is larger than the sum of its proper divisors (28987329).

47805855 is a wasteful number, since it uses less digits than its factorization.

47805855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12666.

The product of its (nonzero) digits is 224000, while the sum is 42.

The square root of 47805855 is about 6914.1778253094. The cubic root of 47805855 is about 362.9334774775.

The spelling of 47805855 in words is "forty-seven million, eight hundred five thousand, eight hundred fifty-five".