47585561 has 4 divisors (see below), whose sum is σ = 48237492. Its totient is φ = 46933632.

The previous prime is 47585537. The next prime is 47585579. The reversal of 47585561 is 16558574.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36529936 + 11055625 = 6044^2 + 3325^2 .

It is a cyclic number.

It is not a de Polignac number, because 47585561 - 2⁶ = 47585497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47585591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325856 + ... + 326001.

It is an arithmetic number, because the mean of its divisors is an integer number (12059373).

Almost surely, 2^47585561 is an apocalyptic number.

It is an amenable number.

47585561 is a deficient number, since it is larger than the sum of its proper divisors (651931).

47585561 is an equidigital number, since it uses as much as digits as its factorization.

47585561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651930.

The product of its digits is 168000, while the sum is 41.

The square root of 47585561 is about 6898.2288306492. The cubic root of 47585561 is about 362.3751414619.

The spelling of 47585561 in words is "forty-seven million, five hundred eighty-five thousand, five hundred sixty-one".