51060060055 has 4 divisors (see below), whose sum is σ = 61272072072. Its totient is φ = 40848048040.

The previous prime is 51060060047. The next prime is 51060060067. The reversal of 51060060055 is 55006006015.

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

It is not a de Polignac number, because 51060060055 - 2³ = 51060060047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5106006001 + ... + 5106006010.

It is an arithmetic number, because the mean of its divisors is an integer number (15318018018).

Almost surely, 2^51060060055 is an apocalyptic number.

51060060055 is a deficient number, since it is larger than the sum of its proper divisors (10212012017).

51060060055 is a wasteful number, since it uses less digits than its factorization.

51060060055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212012016.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 51060060055 in words is "fifty-one billion, sixty million, sixty thousand, fifty-five".