47273561 has 2 divisors, whose sum is σ = 47273562. Its totient is φ = 47273560.

The previous prime is 47273537. The next prime is 47273581. The reversal of 47273561 is 16537274.

47273561 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., 28955161 + 18318400 = 5381^2 + 4280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47273561 is a prime.

It is not a weakly prime, because it can be changed into another prime (47273581) 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, 23636780 + 23636781.

It is an arithmetic number, because the mean of its divisors is an integer number (23636781).

Almost surely, 2^47273561 is an apocalyptic number.

It is an amenable number.

47273561 is a deficient number, since it is larger than the sum of its proper divisors (1).

47273561 is an equidigital number, since it uses as much as digits as its factorization.

47273561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 47273561 is about 6875.5771394116. The cubic root of 47273561 is about 361.5814199712.

The spelling of 47273561 in words is "forty-seven million, two hundred seventy-three thousand, five hundred sixty-one".