51006061006 has 8 divisors (see below), whose sum is σ = 76512624840. Its totient is φ = 25501852728.

The previous prime is 51006061003. The next prime is 51006061019. The reversal of 51006061006 is 60016060015.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51006061003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533721 + ... + 621988.

It is an arithmetic number, because the mean of its divisors is an integer number (9564078105).

Almost surely, 2^51006061006 is an apocalyptic number.

51006061006 is a deficient number, since it is larger than the sum of its proper divisors (25506563834).

51006061006 is a wasteful number, since it uses less digits than its factorization.

51006061006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177778.

The product of its (nonzero) digits is 1080, while the sum is 25.

Subtracting 51006061006 from its reverse (60016060015), we obtain a palindrome (9009999009).

The spelling of 51006061006 in words is "fifty-one billion, six million, sixty-one thousand, six".