51728603 has 12 divisors (see below), whose sum is σ = 55629288. Its totient is φ = 47934720.

The previous prime is 51728561. The next prime is 51728609. The reversal of 51728603 is 30682715.

It is a happy number.

51728603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51728603 - 2¹⁰ = 51727579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51728603.

It is not an unprimeable number, because it can be changed into a prime (51728609) 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 11 ways as a sum of consecutive naturals, for example, 90308 + ... + 90878.

It is an arithmetic number, because the mean of its divisors is an integer number (4635774).

Almost surely, 2^51728603 is an apocalyptic number.

51728603 is a deficient number, since it is larger than the sum of its proper divisors (3900685).

51728603 is an equidigital number, since it uses as much as digits as its factorization.

51728603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 51728603 is about 7192.2599369044. The cubic root of 51728603 is about 372.6006286396.

The spelling of 51728603 in words is "fifty-one million, seven hundred twenty-eight thousand, six hundred three".