51845675 has 18 divisors (see below), whose sum is σ = 74786508. Its totient is φ = 35550480.

The previous prime is 51845641. The next prime is 51845683. The reversal of 51845675 is 57654815.

51845675 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 51845675 - 2¹⁶ = 51780139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 19937 + ... + 22386.

It is an arithmetic number, because the mean of its divisors is an integer number (4154806).

Almost surely, 2^51845675 is an apocalyptic number.

51845675 is a deficient number, since it is larger than the sum of its proper divisors (22940833).

51845675 is a wasteful number, since it uses less digits than its factorization.

51845675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42347 (or 42335 counting only the distinct ones).

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

The square root of 51845675 is about 7200.3940864372. The cubic root of 51845675 is about 372.8815063480.

The spelling of 51845675 in words is "fifty-one million, eight hundred forty-five thousand, six hundred seventy-five".