51150218 has 32 divisors (see below), whose sum is σ = 90201600. Its totient is φ = 21744240.

The previous prime is 51150181. The next prime is 51150233. The reversal of 51150218 is 81205115.

51150218 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 = 51150193 and 51150202.

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 15 ways as a sum of consecutive naturals, for example, 118463 + ... + 118893.

It is an arithmetic number, because the mean of its divisors is an integer number (2818800).

Almost surely, 2^51150218 is an apocalyptic number.

51150218 is a deficient number, since it is larger than the sum of its proper divisors (39051382).

51150218 is a wasteful number, since it uses less digits than its factorization.

51150218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 51150218 is about 7151.9380590159. The cubic root of 51150218 is about 371.2067199676.

The spelling of 51150218 in words is "fifty-one million, one hundred fifty thousand, two hundred eighteen".