51383 has 2 divisors, whose sum is σ = 51384. Its totient is φ = 51382.

The previous prime is 51361. The next prime is 51407. The reversal of 51383 is 38315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51383 - 2¹⁰ = 50359 is a prime.

It is a plaindrome in base 12.

It is a nialpdrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25691 + 25692.

It is an arithmetic number, because the mean of its divisors is an integer number (25692).

2⁵¹³⁸³ is an apocalyptic number.

51383 is a deficient number, since it is larger than the sum of its proper divisors (1).

51383 is an equidigital number, since it uses as much as digits as its factorization.

51383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 20.

The square root of 51383 is about 226.6781859818. The cubic root of 51383 is about 37.1768982089.

Adding to 51383 its reverse (38315), we get a palindrome (89698).

It can be divided in two parts, 51 and 383, that added together give a palindrome (434).

The spelling of 51383 in words is "fifty-one thousand, three hundred eighty-three".