51804337 has 4 divisors (see below), whose sum is σ = 55789300. Its totient is φ = 47819376.

The previous prime is 51804299. The next prime is 51804341. The reversal of 51804337 is 73340815.

51804337 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, and also an emirpimes, since its reverse is a distinct semiprime: 73340815 = 5 ⋅14668163.

It can be written as a sum of positive squares in 2 ways, for example, as 5550736 + 46253601 = 2356^2 + 6801^2 .

It is a cyclic number.

It is not a de Polignac number, because 51804337 - 2¹⁹ = 51280049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51804299 and 51804308.

It is not an unprimeable number, because it can be changed into a prime (51805337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1992462 + ... + 1992487.

It is an arithmetic number, because the mean of its divisors is an integer number (13947325).

Almost surely, 2^51804337 is an apocalyptic number.

It is an amenable number.

51804337 is a deficient number, since it is larger than the sum of its proper divisors (3984963).

51804337 is a wasteful number, since it uses less digits than its factorization.

51804337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984962.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 51804337 is about 7197.5229766914. The cubic root of 51804337 is about 372.7823770619.

The spelling of 51804337 in words is "fifty-one million, eight hundred four thousand, three hundred thirty-seven".