51723208 has 16 divisors (see below), whose sum is σ = 97090560. Its totient is φ = 25832400.

The previous prime is 51723157. The next prime is 51723223. The reversal of 51723208 is 80232715.

51723208 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 2×51723208² = 5350580491622528, which contains 22 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 3 ways as a sum of consecutive naturals, for example, 5113 + ... + 11383.

It is an arithmetic number, because the mean of its divisors is an integer number (6068160).

Almost surely, 2^51723208 is an apocalyptic number.

It is an amenable number.

51723208 is a deficient number, since it is larger than the sum of its proper divisors (45367352).

51723208 is a wasteful number, since it uses less digits than its factorization.

51723208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7308 (or 7304 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 51723208 is about 7191.8848711586. The cubic root of 51723208 is about 372.5876748116.

The spelling of 51723208 in words is "fifty-one million, seven hundred twenty-three thousand, two hundred eight".