51227012 has 12 divisors (see below), whose sum is σ = 89833296. Its totient is φ = 25560360.

The previous prime is 51227009. The next prime is 51227017. The reversal of 51227012 is 21072215.

It is a super-4 number, since 4×51227012⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (51227017) 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, 11078 + ... + 15005.

It is an arithmetic number, because the mean of its divisors is an integer number (7486108).

Almost surely, 2^51227012 is an apocalyptic number.

It is an amenable number.

51227012 is a deficient number, since it is larger than the sum of its proper divisors (38606284).

51227012 is a wasteful number, since it uses less digits than its factorization.

51227012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26578 (or 26576 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 51227012 is about 7157.3047999928. The cubic root of 51227012 is about 371.3923965614.

Adding to 51227012 its reverse (21072215), we get a palindrome (72299227).

The spelling of 51227012 in words is "fifty-one million, two hundred twenty-seven thousand, twelve".