51010009 has 8 divisors (see below), whose sum is σ = 52202880. Its totient is φ = 49825776.

The previous prime is 51009967. The next prime is 51010019. The reversal of 51010009 is 90001015.

51010009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51010009 - 2¹¹ = 51007961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51009974 and 51010001.

It is not an unprimeable number, because it can be changed into a prime (51010019) 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, 10654 + ... + 14680.

It is an arithmetic number, because the mean of its divisors is an integer number (6525360).

Almost surely, 2^51010009 is an apocalyptic number.

It is an amenable number.

51010009 is a deficient number, since it is larger than the sum of its proper divisors (1192871).

51010009 is a wasteful number, since it uses less digits than its factorization.

51010009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4319.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 51010009 is about 7142.1291643319. The cubic root of 51010009 is about 370.8672352571.

The spelling of 51010009 in words is "fifty-one million, ten thousand, nine".