47765005 has 4 divisors (see below), whose sum is σ = 57318012. Its totient is φ = 38212000.

The previous prime is 47764967. The next prime is 47765009. The reversal of 47765005 is 50056774.

47765005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4901796 + 42863209 = 2214^2 + 6547^2 .

It is not a de Polignac number, because 47765005 - 2¹⁷ = 47633933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47765009) 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 3 ways as a sum of consecutive naturals, for example, 4776496 + ... + 4776505.

It is an arithmetic number, because the mean of its divisors is an integer number (14329503).

Almost surely, 2^47765005 is an apocalyptic number.

It is an amenable number.

47765005 is a deficient number, since it is larger than the sum of its proper divisors (9553007).

47765005 is an equidigital number, since it uses as much as digits as its factorization.

47765005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9553006.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 47765005 is about 6911.2231189566. The cubic root of 47765005 is about 362.8300727276.

The spelling of 47765005 in words is "forty-seven million, seven hundred sixty-five thousand, five".