51839312 has 20 divisors (see below), whose sum is σ = 114787296. Its totient is φ = 22216800.

The previous prime is 51839311. The next prime is 51839317. The reversal of 51839312 is 21393815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51839311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231314 + ... + 231537.

Almost surely, 2^51839312 is an apocalyptic number.

It is an amenable number.

51839312 is an abundant number, since it is smaller than the sum of its proper divisors (62947984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51839312 is a wasteful number, since it uses less digits than its factorization.

51839312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462866 (or 462860 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 51839312 is about 7199.9522220637. The cubic root of 51839312 is about 372.8662511887.

The spelling of 51839312 in words is "fifty-one million, eight hundred thirty-nine thousand, three hundred twelve".