51320793 has 8 divisors (see below), whose sum is σ = 68569056. Its totient is φ = 34143200.

The previous prime is 51320777. The next prime is 51320803. The reversal of 51320793 is 39702315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51320793 - 2⁴ = 51320777 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51320793.

It is not an unprimeable number, because it can be changed into a prime (51320723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15948 + ... + 18893.

It is an arithmetic number, because the mean of its divisors is an integer number (8571132).

Almost surely, 2^51320793 is an apocalyptic number.

It is an amenable number.

51320793 is a deficient number, since it is larger than the sum of its proper divisors (17248263).

51320793 is a wasteful number, since it uses less digits than its factorization.

51320793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35335.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 51320793 is about 7163.8532229520. The cubic root of 51320793 is about 371.6188937191.

The spelling of 51320793 in words is "fifty-one million, three hundred twenty thousand, seven hundred ninety-three".