51532171173 has 12 divisors (see below), whose sum is σ = 85068981088. Its totient is φ = 29446954920.

The previous prime is 51532171139. The next prime is 51532171183. The reversal of 51532171173 is 37117123515.

51532171173 is a `hidden beast` number, since 5 + 1 + 532 + 1 + 7 + 117 + 3 = 666.

It is not a de Polignac number, because 51532171173 - 2¹⁴ = 51532154789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51532171183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408985423 + ... + 408985548.

Almost surely, 2^51532171173 is an apocalyptic number.

It is an amenable number.

51532171173 is a deficient number, since it is larger than the sum of its proper divisors (33536809915).

51532171173 is a wasteful number, since it uses less digits than its factorization.

51532171173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817970984 (or 817970981 counting only the distinct ones).

The product of its digits is 22050, while the sum is 36.

Adding to 51532171173 its reverse (37117123515), we get a palindrome (88649294688).

The spelling of 51532171173 in words is "fifty-one billion, five hundred thirty-two million, one hundred seventy-one thousand, one hundred seventy-three".