51228608 has 14 divisors (see below), whose sum is σ = 101656896. Its totient is φ = 25614272.

The previous prime is 51228607. The next prime is 51228623. The reversal of 51228608 is 80682215.

51228608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51228607) 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 as a sum of consecutive naturals, namely, 400160 + ... + 400287.

Almost surely, 2^51228608 is an apocalyptic number.

It is an amenable number.

51228608 is a deficient number, since it is larger than the sum of its proper divisors (50428288).

51228608 is an equidigital number, since it uses as much as digits as its factorization.

51228608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800459 (or 800449 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 51228608 is about 7157.4162936076. The cubic root of 51228608 is about 371.3962534857.

The spelling of 51228608 in words is "fifty-one million, two hundred twenty-eight thousand, six hundred eight".