51172 has 12 divisors (see below), whose sum is σ = 97776.
Its totient is φ = 23240.
The previous prime is 51169. The next prime is 51193. The reversal of 51172 is 27115.
Adding to 51172 its reverse (27115), we get a palindrome (78287).
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, 538 + ... + 625.
It is an arithmetic number, because the mean of its divisors is an integer number (8148).
251172 is an apocalyptic number.
It is an amenable number.
51172 is a deficient number, since it is larger than the sum of its proper divisors (46604).
51172 is a wasteful number, since it uses less digits than its factorization.
51172 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1178 (or 1176 counting only the distinct ones).
The product of its digits is 70, while the sum is 16.
The square root of 51172 is about 226.2122896750.
The cubic root of 51172 is about 37.1259404509.
The spelling of 51172 in words is "fifty-one thousand, one hundred seventy-two".