47521073 has 2 divisors, whose sum is σ = 47521074. Its totient is φ = 47521072.

The previous prime is 47521051. The next prime is 47521079. The reversal of 47521073 is 37012574.

47521073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47169424 + 351649 = 6868^2 + 593^2 .

It is a cyclic number.

It is not a de Polignac number, because 47521073 - 2¹⁴ = 47504689 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (47521079) 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 as a sum of consecutive naturals, namely, 23760536 + 23760537.

It is an arithmetic number, because the mean of its divisors is an integer number (23760537).

Almost surely, 2^47521073 is an apocalyptic number.

It is an amenable number.

47521073 is a deficient number, since it is larger than the sum of its proper divisors (1).

47521073 is an equidigital number, since it uses as much as digits as its factorization.

47521073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 47521073 is about 6893.5530026250. The cubic root of 47521073 is about 362.2113704070.

The spelling of 47521073 in words is "forty-seven million, five hundred twenty-one thousand, seventy-three".