51300208 has 20 divisors (see below), whose sum is σ = 99689800. Its totient is φ = 25573824.

The previous prime is 51300199. The next prime is 51300211. The reversal of 51300208 is 80200315.

It is a happy number.

51300208 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-2 number, since 2×51300208² = 5263422681686528, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 991 + ... + 10177.

It is an arithmetic number, because the mean of its divisors is an integer number (4984490).

Almost surely, 2^51300208 is an apocalyptic number.

It is an amenable number.

51300208 is a deficient number, since it is larger than the sum of its proper divisors (48389592).

51300208 is a wasteful number, since it uses less digits than its factorization.

51300208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9544 (or 9538 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 51300208 is about 7162.4163520421. The cubic root of 51300208 is about 371.5692010735.

The spelling of 51300208 in words is "fifty-one million, three hundred thousand, two hundred eight".