51803093 has 4 divisors (see below), whose sum is σ = 51821868. Its totient is φ = 51784320.

The previous prime is 51803053. The next prime is 51803099. The reversal of 51803093 is 39030815.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39030815 = 5 ⋅7806163.

It can be written as a sum of positive squares in 2 ways, for example, as 42081169 + 9721924 = 6487^2 + 3118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51803093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51803099) 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, 4346 + ... + 11067.

It is an arithmetic number, because the mean of its divisors is an integer number (12955467).

Almost surely, 2^51803093 is an apocalyptic number.

It is an amenable number.

51803093 is a deficient number, since it is larger than the sum of its proper divisors (18775).

51803093 is a wasteful number, since it uses less digits than its factorization.

51803093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18774.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 51803093 is about 7197.4365575530. The cubic root of 51803093 is about 372.7793931098.

The spelling of 51803093 in words is "fifty-one million, eight hundred three thousand, ninety-three".