51747982 has 64 divisors (see below), whose sum is σ = 97977600. Its totient is φ = 20148480.

The previous prime is 51747973. The next prime is 51747989. The reversal of 51747982 is 28974715.

51747982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51747989) 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 31 ways as a sum of consecutive naturals, for example, 483573 + ... + 483679.

It is an arithmetic number, because the mean of its divisors is an integer number (1530900).

Almost surely, 2^51747982 is an apocalyptic number.

51747982 is a deficient number, since it is larger than the sum of its proper divisors (46229618).

51747982 is a wasteful number, since it uses less digits than its factorization.

51747982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its digits is 141120, while the sum is 43.

The square root of 51747982 is about 7193.6070229058. The cubic root of 51747982 is about 372.6471517472.

The spelling of 51747982 in words is "fifty-one million, seven hundred forty-seven thousand, nine hundred eighty-two".