50843975557 has 2 divisors, whose sum is σ = 50843975558. Its totient is φ = 50843975556.

The previous prime is 50843975543. The next prime is 50843975603. The reversal of 50843975557 is 75557934805.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49590390721 + 1253584836 = 222689^2 + 35406^2 .

It is a cyclic number.

It is not a de Polignac number, because 50843975557 - 2¹⁵ = 50843942789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50843075557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25421987778 + 25421987779.

It is an arithmetic number, because the mean of its divisors is an integer number (25421987779).

Almost surely, 2^50843975557 is an apocalyptic number.

It is an amenable number.

50843975557 is a deficient number, since it is larger than the sum of its proper divisors (1).

50843975557 is an equidigital number, since it uses as much as digits as its factorization.

50843975557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460000, while the sum is 58.

The spelling of 50843975557 in words is "fifty billion, eight hundred forty-three million, nine hundred seventy-five thousand, five hundred fifty-seven".