50554731569891 has 2 divisors, whose sum is σ = 50554731569892. Its totient is φ = 50554731569890.

The previous prime is 50554731569879. The next prime is 50554731569941. The reversal of 50554731569891 is 19896513745505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50554731569891 - 2¹⁴ = 50554731553507 is a prime.

It is not a weakly prime, because it can be changed into another prime (50554731569821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25277365784945 + 25277365784946.

It is an arithmetic number, because the mean of its divisors is an integer number (25277365784946).

Almost surely, 2^{50554731569891} is an apocalyptic number.

50554731569891 is a deficient number, since it is larger than the sum of its proper divisors (1).

50554731569891 is an equidigital number, since it uses as much as digits as its factorization.

50554731569891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120000, while the sum is 68.

The spelling of 50554731569891 in words is "fifty trillion, five hundred fifty-four billion, seven hundred thirty-one million, five hundred sixty-nine thousand, eight hundred ninety-one".