51346218 has 48 divisors (see below), whose sum is σ = 130326624. Its totient is φ = 13335840.

The previous prime is 51346213. The next prime is 51346219. The reversal of 51346218 is 81264315.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51346213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4705 + ... + 11172.

It is an arithmetic number, because the mean of its divisors is an integer number (2715138).

Almost surely, 2^51346218 is an apocalyptic number.

51346218 is an abundant number, since it is smaller than the sum of its proper divisors (78980406).

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

51346218 is a wasteful number, since it uses less digits than its factorization.

51346218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15907 (or 15900 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 51346218 is about 7165.6275370689. The cubic root of 51346218 is about 371.6802518936.

The spelling of 51346218 in words is "fifty-one million, three hundred forty-six thousand, two hundred eighteen".