51812966 has 16 divisors (see below), whose sum is σ = 82995840. Its totient is φ = 24205440.

The previous prime is 51812963. The next prime is 51812993. The reversal of 51812966 is 66921815.

51812966 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 not an unprimeable number, because it can be changed into a prime (51812963) 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 in 7 ways as a sum of consecutive naturals, for example, 12611 + ... + 16206.

It is an arithmetic number, because the mean of its divisors is an integer number (5187240).

Almost surely, 2^51812966 is an apocalyptic number.

51812966 is a deficient number, since it is larger than the sum of its proper divisors (31182874).

51812966 is a wasteful number, since it uses less digits than its factorization.

51812966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28879.

The product of its digits is 25920, while the sum is 38.

The square root of 51812966 is about 7198.1223940692. The cubic root of 51812966 is about 372.8030739169.

The spelling of 51812966 in words is "fifty-one million, eight hundred twelve thousand, nine hundred sixty-six".