51170012 has 12 divisors (see below), whose sum is σ = 89609856. Its totient is φ = 25567200.

The previous prime is 51170003. The next prime is 51170023. The reversal of 51170012 is 21007115.

51170012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3653 + ... + 10755.

It is an arithmetic number, because the mean of its divisors is an integer number (7467488).

Almost surely, 2^51170012 is an apocalyptic number.

It is an amenable number.

51170012 is a deficient number, since it is larger than the sum of its proper divisors (38439844).

51170012 is a wasteful number, since it uses less digits than its factorization.

51170012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8908 (or 8906 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 51170012 is about 7153.3217458744. The cubic root of 51170012 is about 371.2545967151.

Adding to 51170012 its reverse (21007115), we get a palindrome (72177127).

The spelling of 51170012 in words is "fifty-one million, one hundred seventy thousand, twelve".