51282805 has 32 divisors (see below), whose sum is σ = 75202560. Its totient is φ = 32788800.

The previous prime is 51282797. The next prime is 51282811. The reversal of 51282805 is 50828215.

51282805 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 51282805 - 2³ = 51282797 is a prime.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 43980 + ... + 45130.

It is an arithmetic number, because the mean of its divisors is an integer number (2350080).

Almost surely, 2^51282805 is an apocalyptic number.

It is an amenable number.

51282805 is a deficient number, since it is larger than the sum of its proper divisors (23919755).

51282805 is a wasteful number, since it uses less digits than its factorization.

51282805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 51282805 is about 7161.2013656928. The cubic root of 51282805 is about 371.5271794754.

The spelling of 51282805 in words is "fifty-one million, two hundred eighty-two thousand, eight hundred five".