51171066 has 24 divisors (see below), whose sum is σ = 116706720. Its totient is φ = 16159176.

The previous prime is 51171019. The next prime is 51171073. The reversal of 51171066 is 66017115.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74470 + ... + 75153.

It is an arithmetic number, because the mean of its divisors is an integer number (4862780).

Almost surely, 2^51171066 is an apocalyptic number.

51171066 is an abundant number, since it is smaller than the sum of its proper divisors (65535654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51171066 is a wasteful number, since it uses less digits than its factorization.

51171066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149650 (or 149647 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 51171066 is about 7153.3954175622. The cubic root of 51171066 is about 371.2571457319.

The spelling of 51171066 in words is "fifty-one million, one hundred seventy-one thousand, sixty-six".