51313015055 has 8 divisors (see below), whose sum is σ = 62045661744. Its totient is φ = 40737049600.

The previous prime is 51313015043. The next prime is 51313015121. The reversal of 51313015055 is 55051031315.

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

It is not a de Polignac number, because 51313015055 - 2²⁰ = 51311966479 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 7 ways as a sum of consecutive naturals, for example, 39169586 + ... + 39170895.

It is an arithmetic number, because the mean of its divisors is an integer number (7755707718).

Almost surely, 2^51313015055 is an apocalyptic number.

51313015055 is a deficient number, since it is larger than the sum of its proper divisors (10732646689).

51313015055 is a wasteful number, since it uses less digits than its factorization.

51313015055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78340617.

The product of its (nonzero) digits is 5625, while the sum is 29.

The spelling of 51313015055 in words is "fifty-one billion, three hundred thirteen million, fifteen thousand, fifty-five".