47666755 has 4 divisors (see below), whose sum is σ = 57200112. Its totient is φ = 38133400.

The previous prime is 47666753. The next prime is 47666761. The reversal of 47666755 is 55766674.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47666755 - 2¹ = 47666753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47666753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4766671 + ... + 4766680.

It is an arithmetic number, because the mean of its divisors is an integer number (14300028).

Almost surely, 2^47666755 is an apocalyptic number.

47666755 is a deficient number, since it is larger than the sum of its proper divisors (9533357).

47666755 is an equidigital number, since it uses as much as digits as its factorization.

47666755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9533356.

The product of its digits is 1058400, while the sum is 46.

The square root of 47666755 is about 6904.1114562266. Note that the first 3 decimals coincide. The cubic root of 47666755 is about 362.5811280965.

The spelling of 47666755 in words is "forty-seven million, six hundred sixty-six thousand, seven hundred fifty-five".