51668850 has 48 divisors (see below), whose sum is σ = 128607840. Its totient is φ = 13728000.

The previous prime is 51668819. The next prime is 51668863. The reversal of 51668850 is 5886615.

51668850 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 = 51668799 and 51668808.

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 23 ways as a sum of consecutive naturals, for example, 59721 + ... + 60579.

It is an arithmetic number, because the mean of its divisors is an integer number (2679330).

Almost surely, 2^51668850 is an apocalyptic number.

51668850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51668850 is an abundant number, since it is smaller than the sum of its proper divisors (76938990).

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

51668850 is a wasteful number, since it uses less digits than its factorization.

51668850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 51668850 is about 7188.1047571665. The cubic root of 51668850 is about 372.4571066025.

The spelling of 51668850 in words is "fifty-one million, six hundred sixty-eight thousand, eight hundred fifty".