51802 has 8 divisors (see below), whose sum is σ = 79200. Its totient is φ = 25404.

The previous prime is 51797. The next prime is 51803. The reversal of 51802 is 20815.

It is a happy number.

51802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102 + ... + 337.

It is an arithmetic number, because the mean of its divisors is an integer number (9900).

2⁵¹⁸⁰² is an apocalyptic number.

51802 is a deficient number, since it is larger than the sum of its proper divisors (27398).

51802 is a wasteful number, since it uses less digits than its factorization.

51802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 51802 is about 227.6005272402. The cubic root of 51802 is about 37.2776771318.

The spelling of 51802 in words is "fifty-one thousand, eight hundred two".