47882561 has 4 divisors (see below), whose sum is σ = 47896452. Its totient is φ = 47868672.

The previous prime is 47882503. The next prime is 47882563. The reversal of 47882561 is 16528874.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16528874 = 2 ⋅8264437.

It can be written as a sum of positive squares in 2 ways, for example, as 21298225 + 26584336 = 4615^2 + 5156^2 .

It is a cyclic number.

It is not a de Polignac number, because 47882561 - 2¹⁴ = 47866177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47882563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585 + ... + 10121.

It is an arithmetic number, because the mean of its divisors is an integer number (11974113).

Almost surely, 2^47882561 is an apocalyptic number.

It is an amenable number.

47882561 is a deficient number, since it is larger than the sum of its proper divisors (13891).

47882561 is an equidigital number, since it uses as much as digits as its factorization.

47882561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13890.

The product of its digits is 107520, while the sum is 41.

The square root of 47882561 is about 6919.7226100473. The cubic root of 47882561 is about 363.1274864817.

The spelling of 47882561 in words is "forty-seven million, eight hundred eighty-two thousand, five hundred sixty-one".