51305214 has 8 divisors (see below), whose sum is σ = 102610440. Its totient is φ = 17101736.

The previous prime is 51305197. The next prime is 51305237. The reversal of 51305214 is 41250315.

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

51305214 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4275429 + ... + 4275440.

It is an arithmetic number, because the mean of its divisors is an integer number (12826305).

Almost surely, 2^51305214 is an apocalyptic number.

51305214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51305214 is a wasteful number, since it uses less digits than its factorization.

51305214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8550874.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51305214 is about 7162.7658065862. The cubic root of 51305214 is about 371.5812868914.

Adding to 51305214 its reverse (41250315), we get a palindrome (92555529).

The spelling of 51305214 in words is "fifty-one million, three hundred five thousand, two hundred fourteen".