50530771387 has 2 divisors, whose sum is σ = 50530771388. Its totient is φ = 50530771386.

The previous prime is 50530771327. The next prime is 50530771391. The reversal of 50530771387 is 78317703505.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50530771387 - 2¹¹ = 50530769339 is a prime.

It is not a weakly prime, because it can be changed into another prime (50530771327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25265385693 + 25265385694.

It is an arithmetic number, because the mean of its divisors is an integer number (25265385694).

Almost surely, 2^50530771387 is an apocalyptic number.

50530771387 is a deficient number, since it is larger than the sum of its proper divisors (1).

50530771387 is an equidigital number, since it uses as much as digits as its factorization.

50530771387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 617400, while the sum is 46.

The spelling of 50530771387 in words is "fifty billion, five hundred thirty million, seven hundred seventy-one thousand, three hundred eighty-seven".