51655017171 has 8 divisors (see below), whose sum is σ = 68898772224. Its totient is φ = 34423970120.

The previous prime is 51655017151. The next prime is 51655017203. The reversal of 51655017171 is 17171055615.

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

It is a cyclic number.

It is not a de Polignac number, because 51655017171 - 2³³ = 43065082579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51655017101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3167511 + ... + 3183776.

It is an arithmetic number, because the mean of its divisors is an integer number (8612346528).

Almost surely, 2^51655017171 is an apocalyptic number.

51655017171 is a deficient number, since it is larger than the sum of its proper divisors (17243755053).

51655017171 is a wasteful number, since it uses less digits than its factorization.

51655017171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6354001.

The product of its (nonzero) digits is 36750, while the sum is 39.

The spelling of 51655017171 in words is "fifty-one billion, six hundred fifty-five million, seventeen thousand, one hundred seventy-one".