51010000001 has 16 divisors (see below), whose sum is σ = 54973071360. Its totient is φ = 47193983760.

The previous prime is 51009999973. The next prime is 51010000009. The reversal of 51010000001 is 10000001015.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51010000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51010000009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1453580 + ... + 1488258.

It is an arithmetic number, because the mean of its divisors is an integer number (3435816960).

Almost surely, 2^51010000001 is an apocalyptic number.

It is an amenable number.

51010000001 is a deficient number, since it is larger than the sum of its proper divisors (3963071359).

51010000001 is a wasteful number, since it uses less digits than its factorization.

51010000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36796.

The product of its (nonzero) digits is 5, while the sum is 8.

Adding to 51010000001 its reverse (10000001015), we get a palindrome (61010001016).

The spelling of 51010000001 in words is "fifty-one billion, ten million, one", and thus it is an aban number and an uban number.