51105105105 has 8 divisors (see below), whose sum is σ = 81768168192. Its totient is φ = 27256056048.

The previous prime is 51105105091. The next prime is 51105105119. The reversal of 51105105105 is 50150150115.

It is an interprime number because it is at equal distance from previous prime (51105105091) and next prime (51105105119).

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

It is not a de Polignac number, because 51105105105 - 2¹⁷ = 51104974033 is a prime.

It is a super-2 number, since 2×51105105105² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1703503489 + ... + 1703503518.

It is an arithmetic number, because the mean of its divisors is an integer number (10221021024).

Almost surely, 2^51105105105 is an apocalyptic number.

It is an amenable number.

51105105105 is a deficient number, since it is larger than the sum of its proper divisors (30663063087).

51105105105 is a wasteful number, since it uses less digits than its factorization.

51105105105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407007015.

The product of its (nonzero) digits is 625, while the sum is 24.

The spelling of 51105105105 in words is "fifty-one billion, one hundred five million, one hundred five thousand, one hundred five".