51550050571 has 2 divisors, whose sum is σ = 51550050572. Its totient is φ = 51550050570.

The previous prime is 51550050569. The next prime is 51550050599. The reversal of 51550050571 is 17505005515.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51550050571 - 2¹ = 51550050569 is a prime.

Together with 51550050569, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51550050371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25775025285 + 25775025286.

It is an arithmetic number, because the mean of its divisors is an integer number (25775025286).

Almost surely, 2^51550050571 is an apocalyptic number.

51550050571 is a deficient number, since it is larger than the sum of its proper divisors (1).

51550050571 is an equidigital number, since it uses as much as digits as its factorization.

51550050571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21875, while the sum is 34.

The spelling of 51550050571 in words is "fifty-one billion, five hundred fifty million, fifty thousand, five hundred seventy-one".