51005110105 has 16 divisors (see below), whose sum is σ = 61513608384. Its totient is φ = 40599327040.

The previous prime is 51005110097. The next prime is 51005110111. The reversal of 51005110105 is 50101150015.

It is a happy number.

It is not a de Polignac number, because 51005110105 - 2³ = 51005110097 is a prime.

It is a super-2 number, since 2×51005110105² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1953990 + ... + 1979920.

It is an arithmetic number, because the mean of its divisors is an integer number (3844600524).

Almost surely, 2^51005110105 is an apocalyptic number.

It is an amenable number.

51005110105 is a deficient number, since it is larger than the sum of its proper divisors (10508498279).

51005110105 is a wasteful number, since it uses less digits than its factorization.

51005110105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27896.

The product of its (nonzero) digits is 125, while the sum is 19.

The spelling of 51005110105 in words is "fifty-one billion, five million, one hundred ten thousand, one hundred five".