51862 has 4 divisors (see below), whose sum is σ = 77796. Its totient is φ = 25930.

The previous prime is 51859. The next prime is 51869. The reversal of 51862 is 26815.

It is a happy number.

51862 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 5⁵ + 1 + 8⁵ + 6⁵ + 2¹³ .

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12964 + ... + 12967.

It is an arithmetic number, because the mean of its divisors is an integer number (19449).

2⁵¹⁸⁶² is an apocalyptic number.

51862 is a deficient number, since it is larger than the sum of its proper divisors (25934).

51862 is a wasteful number, since it uses less digits than its factorization.

51862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25933.

The product of its digits is 480, while the sum is 22.

The square root of 51862 is about 227.7322989828. The cubic root of 51862 is about 37.2920639486.

The spelling of 51862 in words is "fifty-one thousand, eight hundred sixty-two".