51999338 has 16 divisors (see below), whose sum is σ = 80780544. Its totient is φ = 25078080.

The previous prime is 51999329. The next prime is 51999347. The reversal of 51999338 is 83399915.

51999338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51999329) and next prime (51999347).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51999292 and 51999301.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20306 + ... + 22722.

It is an arithmetic number, because the mean of its divisors is an integer number (5048784).

Almost surely, 2^51999338 is an apocalyptic number.

51999338 is a deficient number, since it is larger than the sum of its proper divisors (28781206).

51999338 is a wasteful number, since it uses less digits than its factorization.

51999338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797.

The product of its digits is 262440, while the sum is 47.

The square root of 51999338 is about 7211.0566493406. The cubic root of 51999338 is about 373.2495317504.

The spelling of 51999338 in words is "fifty-one million, nine hundred ninety-nine thousand, three hundred thirty-eight".