51730443 has 12 divisors (see below), whose sum is σ = 74897680. Its totient is φ = 34405776.

The previous prime is 51730423. The next prime is 51730447. The reversal of 51730443 is 34403715.

It is not a de Polignac number, because 51730443 - 2¹⁷ = 51599371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51730447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2596 + ... + 10497.

Almost surely, 2^51730443 is an apocalyptic number.

51730443 is a deficient number, since it is larger than the sum of its proper divisors (23167237).

51730443 is a wasteful number, since it uses less digits than its factorization.

51730443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13538 (or 13535 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 51730443 is about 7192.3878510548. The cubic root of 51730443 is about 372.6050464213.

The spelling of 51730443 in words is "fifty-one million, seven hundred thirty thousand, four hundred forty-three".