51005306 has 16 divisors (see below), whose sum is σ = 87092928. Its totient is φ = 22176000.

The previous prime is 51005299. The next prime is 51005309. The reversal of 51005306 is 60350015.

51005306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51005309) 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, 49895 + ... + 50906.

It is an arithmetic number, because the mean of its divisors is an integer number (5443308).

Almost surely, 2^51005306 is an apocalyptic number.

51005306 is a deficient number, since it is larger than the sum of its proper divisors (36087622).

51005306 is a wasteful number, since it uses less digits than its factorization.

51005306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100837.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 51005306 is about 7141.7999131872. The cubic root of 51005306 is about 370.8558372181.

The spelling of 51005306 in words is "fifty-one million, five thousand, three hundred six".