51628748 has 18 divisors (see below), whose sum is σ = 92329356. Its totient is φ = 25260808.

The previous prime is 51628723. The next prime is 51628763. The reversal of 51628748 is 84782615.

51628748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×51628748⁴ (a number of 32 digits) contains 4444 as substring.

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 5 ways as a sum of consecutive naturals, for example, 5915 + ... + 11757.

Almost surely, 2^51628748 is an apocalyptic number.

It is an amenable number.

51628748 is a deficient number, since it is larger than the sum of its proper divisors (40700608).

51628748 is a wasteful number, since it uses less digits than its factorization.

51628748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5941 (or 5892 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 51628748 is about 7185.3147460637. The cubic root of 51628748 is about 372.3607226707.

The spelling of 51628748 in words is "fifty-one million, six hundred twenty-eight thousand, seven hundred forty-eight".