51607428 has 24 divisors (see below), whose sum is σ = 121046688. Its totient is φ = 17112576.

The previous prime is 51607417. The next prime is 51607459. The reversal of 51607428 is 82470615.

51607428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 8826 + ... + 13457.

It is an arithmetic number, because the mean of its divisors is an integer number (5043612).

Almost surely, 2^51607428 is an apocalyptic number.

It is an amenable number.

51607428 is an abundant number, since it is smaller than the sum of its proper divisors (69439260).

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

51607428 is a wasteful number, since it uses less digits than its factorization.

51607428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22483 (or 22481 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 51607428 is about 7183.8310113755. The cubic root of 51607428 is about 372.3094603803.

The spelling of 51607428 in words is "fifty-one million, six hundred seven thousand, four hundred twenty-eight".