51230212 has 12 divisors (see below), whose sum is σ = 97803216. Its totient is φ = 23286440.

The previous prime is 51230183. The next prime is 51230219. The reversal of 51230212 is 21203215.

It is not an unprimeable number, because it can be changed into a prime (51230219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582118 + ... + 582205.

It is an arithmetic number, because the mean of its divisors is an integer number (8150268).

Almost surely, 2^51230212 is an apocalyptic number.

It is an amenable number.

51230212 is a deficient number, since it is larger than the sum of its proper divisors (46573004).

51230212 is a wasteful number, since it uses less digits than its factorization.

51230212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164338 (or 1164336 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 51230212 is about 7157.5283443379. The cubic root of 51230212 is about 371.4001296621.

Adding to 51230212 its reverse (21203215), we get a palindrome (72433427).

The spelling of 51230212 in words is "fifty-one million, two hundred thirty thousand, two hundred twelve".