51056370005 has 4 divisors (see below), whose sum is σ = 61267644012. Its totient is φ = 40845096000.

The previous prime is 51056369971. The next prime is 51056370047. The reversal of 51056370005 is 50007365015.

51056370005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19982084164 + 31074285841 = 141358^2 + 176279^2 .

It is not a de Polignac number, because 51056370005 - 2¹² = 51056365909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105636996 + ... + 5105637005.

It is an arithmetic number, because the mean of its divisors is an integer number (15316911003).

Almost surely, 2^51056370005 is an apocalyptic number.

It is an amenable number.

51056370005 is a deficient number, since it is larger than the sum of its proper divisors (10211274007).

51056370005 is a wasteful number, since it uses less digits than its factorization.

51056370005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211274006.

The product of its (nonzero) digits is 15750, while the sum is 32.

The spelling of 51056370005 in words is "fifty-one billion, fifty-six million, three hundred seventy thousand, five".