51118 has 8 divisors (see below), whose sum is σ = 78120.
Its totient is φ = 25080.
The previous prime is 51109. The next prime is 51131. The reversal of 51118 is 81115.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×511182 = 5226099848, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
51118 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88 + ... + 331.
It is an arithmetic number, because the mean of its divisors is an integer number (9765).
251118 is an apocalyptic number.
51118 is a deficient number, since it is larger than the sum of its proper divisors (27002).
51118 is a wasteful number, since it uses less digits than its factorization.
51118 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 482.
The product of its digits is 40, while the sum is 16.
The square root of 51118 is about 226.0929012596.
The cubic root of 51118 is about 37.1128766243.
It can be divided in two parts, 511 and 18, that added together give a square (529 = 232).
The spelling of 51118 in words is "fifty-one thousand, one hundred eighteen".