51006506055 has 8 divisors (see below), whose sum is σ = 81610409712. Its totient is φ = 27203469888.

The previous prime is 51006505999. The next prime is 51006506101. The reversal of 51006506055 is 55060560015.

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

It is not a de Polignac number, because 51006506055 - 2⁸ = 51006505799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700216854 + ... + 1700216883.

It is an arithmetic number, because the mean of its divisors is an integer number (10201301214).

Almost surely, 2^51006506055 is an apocalyptic number.

51006506055 is a deficient number, since it is larger than the sum of its proper divisors (30603903657).

51006506055 is a wasteful number, since it uses less digits than its factorization.

51006506055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400433745.

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 51006506055 in words is "fifty-one billion, six million, five hundred six thousand, fifty-five".