51006100011 has 4 divisors (see below), whose sum is σ = 68008133352. Its totient is φ = 34004066672.

The previous prime is 51006100003. The next prime is 51006100021. The reversal of 51006100011 is 11000160015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51006100011 - 2³ = 51006100003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51006100021) 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 3 ways as a sum of consecutive naturals, for example, 8501016666 + ... + 8501016671.

It is an arithmetic number, because the mean of its divisors is an integer number (17002033338).

Almost surely, 2^51006100011 is an apocalyptic number.

51006100011 is a deficient number, since it is larger than the sum of its proper divisors (17002033341).

51006100011 is a wasteful number, since it uses less digits than its factorization.

51006100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17002033340.

The product of its (nonzero) digits is 30, while the sum is 15.

Adding to 51006100011 its reverse (11000160015), we get a palindrome (62006260026).

The spelling of 51006100011 in words is "fifty-one billion, six million, one hundred thousand, eleven".