51286105 has 8 divisors (see below), whose sum is σ = 66277512. Its totient is φ = 37872768.

The previous prime is 51286031. The next prime is 51286117. The reversal of 51286105 is 50168215.

It can be written as a sum of positive squares in 4 ways, for example, as 4787344 + 46498761 = 2188^2 + 6819^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51286105 - 2¹⁷ = 51155033 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394444 + ... + 394573.

It is an arithmetic number, because the mean of its divisors is an integer number (8284689).

Almost surely, 2^51286105 is an apocalyptic number.

It is an amenable number.

51286105 is a deficient number, since it is larger than the sum of its proper divisors (14991407).

51286105 is a wasteful number, since it uses less digits than its factorization.

51286105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789035.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 51286105 is about 7161.4317702538. The cubic root of 51286105 is about 371.5351484454.

The spelling of 51286105 in words is "fifty-one million, two hundred eighty-six thousand, one hundred five".