51838443 has 12 divisors (see below), whose sum is σ = 76901968. Its totient is φ = 33624720.

The previous prime is 51838429. The next prime is 51838447. The reversal of 51838443 is 34483815.

It is not a de Polignac number, because 51838443 - 2⁴ = 51838427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51838398 and 51838407.

It is not an unprimeable number, because it can be changed into a prime (51838447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77503 + ... + 78168.

Almost surely, 2^51838443 is an apocalyptic number.

51838443 is a deficient number, since it is larger than the sum of its proper divisors (25063525).

51838443 is a wasteful number, since it uses less digits than its factorization.

51838443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155714 (or 155711 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 51838443 is about 7199.8918741881. The cubic root of 51838443 is about 372.8641676825.

The spelling of 51838443 in words is "fifty-one million, eight hundred thirty-eight thousand, four hundred forty-three".