47936561 has 2 divisors, whose sum is σ = 47936562. Its totient is φ = 47936560.

The previous prime is 47936491. The next prime is 47936591. The reversal of 47936561 is 16563974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34105600 + 13830961 = 5840^2 + 3719^2 .

It is a cyclic number.

It is not a de Polignac number, because 47936561 - 2¹⁴ = 47920177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47936591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23968280 + 23968281.

It is an arithmetic number, because the mean of its divisors is an integer number (23968281).

Almost surely, 2^47936561 is an apocalyptic number.

It is an amenable number.

47936561 is a deficient number, since it is larger than the sum of its proper divisors (1).

47936561 is an equidigital number, since it uses as much as digits as its factorization.

47936561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 47936561 is about 6923.6234010813. The cubic root of 47936561 is about 363.2639419894.

The spelling of 47936561 in words is "forty-seven million, nine hundred thirty-six thousand, five hundred sixty-one".