51853845 has 16 divisors (see below), whose sum is σ = 86573952. Its totient is φ = 26452800.

The previous prime is 51853787. The next prime is 51853849. The reversal of 51853845 is 54835815.

51853845 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 51853845 - 2¹⁰ = 51852821 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51853849) 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, 74806 + ... + 75495.

It is an arithmetic number, because the mean of its divisors is an integer number (5410872).

Almost surely, 2^51853845 is an apocalyptic number.

It is an amenable number.

51853845 is a deficient number, since it is larger than the sum of its proper divisors (34720107).

51853845 is a wasteful number, since it uses less digits than its factorization.

51853845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150332.

The product of its digits is 96000, while the sum is 39.

The square root of 51853845 is about 7200.9613941473. The cubic root of 51853845 is about 372.9010919219.

The spelling of 51853845 in words is "fifty-one million, eight hundred fifty-three thousand, eight hundred forty-five".