51264212 has 6 divisors (see below), whose sum is σ = 89712378. Its totient is φ = 25632104.

The previous prime is 51264211. The next prime is 51264221. The reversal of 51264212 is 21246215.

It is a happy number.

51264212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 49056016 + 2208196 = 7004^2 + 1486^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51264211) by changing a digit.

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 as a sum of consecutive naturals, namely, 6408023 + ... + 6408030.

It is an arithmetic number, because the mean of its divisors is an integer number (14952063).

Almost surely, 2^51264212 is an apocalyptic number.

It is an amenable number.

51264212 is a deficient number, since it is larger than the sum of its proper divisors (38448166).

51264212 is a wasteful number, since it uses less digits than its factorization.

51264212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12816057 (or 12816055 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 51264212 is about 7159.9030719696. The cubic root of 51264212 is about 371.4822739764.

The spelling of 51264212 in words is "fifty-one million, two hundred sixty-four thousand, two hundred twelve".