51300218 has 8 divisors (see below), whose sum is σ = 78587712. Its totient is φ = 25104316.

The previous prime is 51300211. The next prime is 51300289. The reversal of 51300218 is 81200315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51300218.

It is not an unprimeable number, because it can be changed into a prime (51300211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272780 + ... + 272967.

It is an arithmetic number, because the mean of its divisors is an integer number (9823464).

Almost surely, 2^51300218 is an apocalyptic number.

51300218 is a deficient number, since it is larger than the sum of its proper divisors (27287494).

51300218 is a wasteful number, since it uses less digits than its factorization.

51300218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545796.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 51300218 is about 7162.4170501305. The cubic root of 51300218 is about 371.5692252169.

The spelling of 51300218 in words is "fifty-one million, three hundred thousand, two hundred eighteen".