66050047 has 4 divisors (see below), whose sum is σ = 75485776. Its totient is φ = 56614320.

The previous prime is 66050041. The next prime is 66050051. The reversal of 66050047 is 74005066.

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

It is not a de Polignac number, because 66050047 - 2¹⁵ = 66017279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66049997 and 66050024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66050041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4717854 + ... + 4717867.

It is an arithmetic number, because the mean of its divisors is an integer number (18871444).

Almost surely, 2^66050047 is an apocalyptic number.

66050047 is a deficient number, since it is larger than the sum of its proper divisors (9435729).

66050047 is an equidigital number, since it uses as much as digits as its factorization.

66050047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9435728.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 66050047 is about 8127.1180008660. The cubic root of 66050047 is about 404.2261236981.

The spelling of 66050047 in words is "sixty-six million, fifty thousand, forty-seven".