51302028 has 24 divisors (see below), whose sum is σ = 119824432. Its totient is φ = 17083584.

The previous prime is 51302023. The next prime is 51302063. The reversal of 51302028 is 82020315.

51302028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51301995 and 51302013.

It is not an unprimeable number, because it can be changed into a prime (51302023) 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 7 ways as a sum of consecutive naturals, for example, 17826 + ... + 20502.

Almost surely, 2^51302028 is an apocalyptic number.

It is an amenable number.

51302028 is an abundant number, since it is smaller than the sum of its proper divisors (68522404).

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

51302028 is a wasteful number, since it uses less digits than its factorization.

51302028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281 (or 4279 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 51302028 is about 7162.5434030099. The cubic root of 51302028 is about 371.5735951294.

The spelling of 51302028 in words is "fifty-one million, three hundred two thousand, twenty-eight".