51337873 has 4 divisors (see below), whose sum is σ = 51712740. Its totient is φ = 50963008.

The previous prime is 51337861. The next prime is 51337877. The reversal of 51337873 is 37873315.

51337873 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.

It can be written as a sum of positive squares in 2 ways, for example, as 19607184 + 31730689 = 4428^2 + 5633^2 .

It is a cyclic number.

It is not a de Polignac number, because 51337873 - 2⁹ = 51337361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51337877) 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, 187228 + ... + 187501.

It is an arithmetic number, because the mean of its divisors is an integer number (12928185).

Almost surely, 2^51337873 is an apocalyptic number.

It is an amenable number.

51337873 is a deficient number, since it is larger than the sum of its proper divisors (374867).

51337873 is a wasteful number, since it uses less digits than its factorization.

51337873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374866.

The product of its digits is 52920, while the sum is 37.

The square root of 51337873 is about 7165.0452196759. The cubic root of 51337873 is about 371.6601151314.

The spelling of 51337873 in words is "fifty-one million, three hundred thirty-seven thousand, eight hundred seventy-three".