51938 has 4 divisors (see below), whose sum is σ = 77910. Its totient is φ = 25968.

The previous prime is 51929. The next prime is 51941. The reversal of 51938 is 83915.

51938 = 9⁴ + 10⁴ + ... + 12⁴.

51938 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 can be written as a sum of positive squares in only one way, i.e., 49729 + 2209 = 223^2 + 47^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 51938.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12983 + ... + 12986.

2⁵¹⁹³⁸ is an apocalyptic number.

51938 is a deficient number, since it is larger than the sum of its proper divisors (25972).

51938 is a wasteful number, since it uses less digits than its factorization.

51938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25971.

The product of its digits is 1080, while the sum is 26.

The square root of 51938 is about 227.8991004809. The cubic root of 51938 is about 37.3102713294.

It can be divided in two parts, 51 and 938, that added together give a palindrome (989).

The spelling of 51938 in words is "fifty-one thousand, nine hundred thirty-eight".