51051105051 has 4 divisors (see below), whose sum is σ = 68068140072. Its totient is φ = 34034070032.

The previous prime is 51051105029. The next prime is 51051105097. The reversal of 51051105051 is 15050115015.

51051105051 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 is a cyclic number.

It is not a de Polignac number, because 51051105051 - 2⁵ = 51051105019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51051105151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8508517506 + ... + 8508517511.

It is an arithmetic number, because the mean of its divisors is an integer number (17017035018).

Almost surely, 2^51051105051 is an apocalyptic number.

51051105051 is a deficient number, since it is larger than the sum of its proper divisors (17017035021).

51051105051 is a wasteful number, since it uses less digits than its factorization.

51051105051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17017035020.

The product of its (nonzero) digits is 625, while the sum is 24.

The spelling of 51051105051 in words is "fifty-one billion, fifty-one million, one hundred five thousand, fifty-one".