51830 has 16 divisors (see below), whose sum is σ = 95904. Its totient is φ = 20160.

The previous prime is 51829. The next prime is 51839. The reversal of 51830 is 3815.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 51799 and 51808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674 + ... + 746.

It is an arithmetic number, because the mean of its divisors is an integer number (5994).

2⁵¹⁸³⁰ is an apocalyptic number.

51830 is a deficient number, since it is larger than the sum of its proper divisors (44074).

51830 is a wasteful number, since it uses less digits than its factorization.

51830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 51830 is about 227.6620302115. The cubic root of 51830 is about 37.2843923613.

The spelling of 51830 in words is "fifty-one thousand, eight hundred thirty".