51073 has 4 divisors (see below), whose sum is σ = 55728. Its totient is φ = 46420.

The previous prime is 51071. The next prime is 51109. The reversal of 51073 is 37015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51073 - 2¹ = 51071 is a prime.

It is a Duffinian number.

51073 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (51071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2311 + ... + 2332.

It is an arithmetic number, because the mean of its divisors is an integer number (13932).

2⁵¹⁰⁷³ is an apocalyptic number.

It is an amenable number.

51073 is a deficient number, since it is larger than the sum of its proper divisors (4655).

51073 is a wasteful number, since it uses less digits than its factorization.

51073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654.

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 51073 is about 225.9933627344. The cubic root of 51073 is about 37.1019830725.

Adding to 51073 its reverse (37015), we get a palindrome (88088).

The spelling of 51073 in words is "fifty-one thousand, seventy-three".