51188 has 12 divisors (see below), whose sum is σ = 91392. Its totient is φ = 25080.

The previous prime is 51169. The next prime is 51193. The reversal of 51188 is 88115.

It is a super-2 number, since 2×51188² = 5240422688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

51188 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, 173 + ... + 363.

It is an arithmetic number, because the mean of its divisors is an integer number (7616).

2⁵¹¹⁸⁸ is an apocalyptic number.

It is an amenable number.

51188 is a deficient number, since it is larger than the sum of its proper divisors (40204).

51188 is a wasteful number, since it uses less digits than its factorization.

51188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 260 counting only the distinct ones).

The product of its digits is 320, while the sum is 23.

The square root of 51188 is about 226.2476519215. The cubic root of 51188 is about 37.1298094492.

The spelling of 51188 in words is "fifty-one thousand, one hundred eighty-eight".