50471715251 has 2 divisors, whose sum is σ = 50471715252. Its totient is φ = 50471715250.

The previous prime is 50471715241. The next prime is 50471715289. The reversal of 50471715251 is 15251717405.

It is an a-pointer prime, because the next prime (50471715289) can be obtained adding 50471715251 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50471715251 - 2¹⁸ = 50471453107 is a prime.

It is not a weakly prime, because it can be changed into another prime (50471715241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25235857625 + 25235857626.

It is an arithmetic number, because the mean of its divisors is an integer number (25235857626).

Almost surely, 2^50471715251 is an apocalyptic number.

50471715251 is a deficient number, since it is larger than the sum of its proper divisors (1).

50471715251 is an equidigital number, since it uses as much as digits as its factorization.

50471715251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49000, while the sum is 38.

The spelling of 50471715251 in words is "fifty billion, four hundred seventy-one million, seven hundred fifteen thousand, two hundred fifty-one".