51933839 has 8 divisors (see below), whose sum is σ = 55514592. Its totient is φ = 48463360.

The previous prime is 51933811. The next prime is 51933851. The reversal of 51933839 is 93833915.

51933839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51933839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51933796 and 51933805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51933139) 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 7 ways as a sum of consecutive naturals, for example, 26594 + ... + 28479.

It is an arithmetic number, because the mean of its divisors is an integer number (6939324).

Almost surely, 2^51933839 is an apocalyptic number.

51933839 is a deficient number, since it is larger than the sum of its proper divisors (3580753).

51933839 is a wasteful number, since it uses less digits than its factorization.

51933839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55137.

The product of its digits is 87480, while the sum is 41.

The square root of 51933839 is about 7206.5136508578. The cubic root of 51933839 is about 373.0927493503.

The spelling of 51933839 in words is "fifty-one million, nine hundred thirty-three thousand, eight hundred thirty-nine".