47583521 has 2 divisors, whose sum is σ = 47583522. Its totient is φ = 47583520.

The previous prime is 47583511. The next prime is 47583539. The reversal of 47583521 is 12538574.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41152225 + 6431296 = 6415^2 + 2536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47583521 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 (47583511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23791760 + 23791761.

It is an arithmetic number, because the mean of its divisors is an integer number (23791761).

Almost surely, 2^47583521 is an apocalyptic number.

It is an amenable number.

47583521 is a deficient number, since it is larger than the sum of its proper divisors (1).

47583521 is an equidigital number, since it uses as much as digits as its factorization.

47583521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 35.

The square root of 47583521 is about 6898.0809650221. The cubic root of 47583521 is about 362.3699630294.

The spelling of 47583521 in words is "forty-seven million, five hundred eighty-three thousand, five hundred twenty-one".