50947561 has 16 divisors (see below), whose sum is σ = 59956864. Its totient is φ = 42384384.

The previous prime is 50947513. The next prime is 50947573. The reversal of 50947561 is 16574905.

50947561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50947561 - 2⁹ = 50947049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50947561.

It is not an unprimeable number, because it can be changed into a prime (50947591) 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 in 15 ways as a sum of consecutive naturals, for example, 57655 + ... + 58531.

It is an arithmetic number, because the mean of its divisors is an integer number (3747304).

Almost surely, 2^50947561 is an apocalyptic number.

It is an amenable number.

50947561 is a deficient number, since it is larger than the sum of its proper divisors (9009303).

50947561 is a wasteful number, since it uses less digits than its factorization.

50947561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 50947561 is about 7137.7560199267. The cubic root of 50947561 is about 370.7158311502.

The spelling of 50947561 in words is "fifty million, nine hundred forty-seven thousand, five hundred sixty-one".