47055816 has 40 divisors (see below), whose sum is σ = 131801670. Its totient is φ = 15685056.

The previous prime is 47055793. The next prime is 47055817. The reversal of 47055816 is 61855074.

47055816 is a `hidden beast` number, since 4 + 70 + 5 + 581 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26316900 + 20738916 = 5130^2 + 4554^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (47055817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 35661 + ... + 36956.

Almost surely, 2^47055816 is an apocalyptic number.

It is an amenable number.

47055816 is an abundant number, since it is smaller than the sum of its proper divisors (84745854).

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

47055816 is a wasteful number, since it uses less digits than its factorization.

47055816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72635 (or 72622 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 47055816 is about 6859.7241927063. The cubic root of 47055816 is about 361.0254098233.

The spelling of 47055816 in words is "forty-seven million, fifty-five thousand, eight hundred sixteen".