50285697857 has 2 divisors, whose sum is σ = 50285697858. Its totient is φ = 50285697856.

The previous prime is 50285697829. The next prime is 50285697871. The reversal of 50285697857 is 75879658205.

50285697857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46675009936 + 3610687921 = 216044^2 + 60089^2 .

It is a cyclic number.

It is not a de Polignac number, because 50285697857 - 2²⁰ = 50284649281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50285697857.

It is not a weakly prime, because it can be changed into another prime (50285697557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25142848928 + 25142848929.

It is an arithmetic number, because the mean of its divisors is an integer number (25142848929).

Almost surely, 2^50285697857 is an apocalyptic number.

It is an amenable number.

50285697857 is a deficient number, since it is larger than the sum of its proper divisors (1).

50285697857 is an equidigital number, since it uses as much as digits as its factorization.

50285697857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336000, while the sum is 62.

The spelling of 50285697857 in words is "fifty billion, two hundred eighty-five million, six hundred ninety-seven thousand, eight hundred fifty-seven".