51005671105 has 16 divisors (see below), whose sum is σ = 63909155520. Its totient is φ = 39029271232.

The previous prime is 51005671103. The next prime is 51005671127. The reversal of 51005671105 is 50117650015.

It is a cyclic number.

It is not a de Polignac number, because 51005671105 - 2¹ = 51005671103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51005671103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1628239 + ... + 1659268.

It is an arithmetic number, because the mean of its divisors is an integer number (3994322220).

Almost surely, 2^51005671105 is an apocalyptic number.

It is an amenable number.

51005671105 is a deficient number, since it is larger than the sum of its proper divisors (12903484415).

51005671105 is a wasteful number, since it uses less digits than its factorization.

51005671105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287648.

The product of its (nonzero) digits is 5250, while the sum is 31.

The spelling of 51005671105 in words is "fifty-one billion, five million, six hundred seventy-one thousand, one hundred five".