51106005 has 32 divisors (see below), whose sum is σ = 91969920. Its totient is φ = 26922240.

The previous prime is 51105979. The next prime is 51106009. The reversal of 51106005 is 50060115.

51106005 is a `hidden beast` number, since 51 + 10 + 600 + 5 = 666.

51106005 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 51106005 - 2⁶ = 51105941 is a prime.

It is a super-2 number, since 2×51106005² = 5223647494120050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51106009) 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 31 ways as a sum of consecutive naturals, for example, 8925 + ... + 13485.

It is an arithmetic number, because the mean of its divisors is an integer number (2874060).

Almost surely, 2^51106005 is an apocalyptic number.

It is an amenable number.

51106005 is a deficient number, since it is larger than the sum of its proper divisors (40863915).

51106005 is a wasteful number, since it uses less digits than its factorization.

51106005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658 (or 4652 counting only the distinct ones).

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

The square root of 51106005 is about 7148.8464104357. The cubic root of 51106005 is about 371.0997351271.

The spelling of 51106005 in words is "fifty-one million, one hundred six thousand, five".