51066806 has 8 divisors (see below), whose sum is σ = 87543120. Its totient is φ = 21885768.

The previous prime is 51066791. The next prime is 51066809. The reversal of 51066806 is 60866015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51066809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1823801 + ... + 1823828.

It is an arithmetic number, because the mean of its divisors is an integer number (10942890).

Almost surely, 2^51066806 is an apocalyptic number.

51066806 is a deficient number, since it is larger than the sum of its proper divisors (36476314).

51066806 is a wasteful number, since it uses less digits than its factorization.

51066806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647638.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 51066806 is about 7146.1042533677. The cubic root of 51066806 is about 371.0048313463.

The spelling of 51066806 in words is "fifty-one million, sixty-six thousand, eight hundred six".