51006105 has 20 divisors (see below), whose sum is σ = 91433892. Its totient is φ = 27203040.

The previous prime is 51006079. The next prime is 51006143. The reversal of 51006105 is 50160015.

51006105 is a `hidden beast` number, since 51 + 0 + 0 + 610 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37785609 + 13220496 = 6147^2 + 3636^2 .

It is not a de Polignac number, because 51006105 - 2⁸ = 51005849 is a prime.

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 19 ways as a sum of consecutive naturals, for example, 62566 + ... + 63375.

Almost surely, 2^51006105 is an apocalyptic number.

It is an amenable number.

51006105 is a deficient number, since it is larger than the sum of its proper divisors (40427787).

51006105 is a wasteful number, since it uses less digits than its factorization.

51006105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125958 (or 125949 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 51006105 is about 7141.8558512476. The cubic root of 51006105 is about 370.8577736981.

The spelling of 51006105 in words is "fifty-one million, six thousand, one hundred five".