47211855 has 16 divisors (see below), whose sum is σ = 78144480. Its totient is φ = 24311168.

The previous prime is 47211851. The next prime is 47211863. The reversal of 47211855 is 55811274.

47211855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 47211855 - 2² = 47211851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47211851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53832 + ... + 54701.

It is an arithmetic number, because the mean of its divisors is an integer number (4884030).

Almost surely, 2^47211855 is an apocalyptic number.

47211855 is a deficient number, since it is larger than the sum of its proper divisors (30932625).

47211855 is a wasteful number, since it uses less digits than its factorization.

47211855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108570.

The product of its digits is 11200, while the sum is 33.

The square root of 47211855 is about 6871.0883417403. The cubic root of 47211855 is about 361.4240278512.

The spelling of 47211855 in words is "forty-seven million, two hundred eleven thousand, eight hundred fifty-five".