50921020807 has 2 divisors, whose sum is σ = 50921020808. Its totient is φ = 50921020806.

The previous prime is 50921020793. The next prime is 50921020817. The reversal of 50921020807 is 70802012905.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50921020807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50921020817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25460510403 + 25460510404.

It is an arithmetic number, because the mean of its divisors is an integer number (25460510404).

Almost surely, 2^50921020807 is an apocalyptic number.

50921020807 is a deficient number, since it is larger than the sum of its proper divisors (1).

50921020807 is an equidigital number, since it uses as much as digits as its factorization.

50921020807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 50921020807 in words is "fifty billion, nine hundred twenty-one million, twenty thousand, eight hundred seven".