51731273032 has 16 divisors (see below), whose sum is σ = 101213360640. Its totient is φ = 24741043536.

The previous prime is 51731272991. The next prime is 51731273053. The reversal of 51731273032 is 23037213715.

It is a super-2 number, since 2×51731273032² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140573928 + ... + 140574295.

It is an arithmetic number, because the mean of its divisors is an integer number (6325835040).

Almost surely, 2^51731273032 is an apocalyptic number.

It is an amenable number.

51731273032 is a deficient number, since it is larger than the sum of its proper divisors (49482087608).

51731273032 is a wasteful number, since it uses less digits than its factorization.

51731273032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281148252 (or 281148248 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 34.

Adding to 51731273032 its reverse (23037213715), we get a palindrome (74768486747).

The spelling of 51731273032 in words is "fifty-one billion, seven hundred thirty-one million, two hundred seventy-three thousand, thirty-two".