50245535381 has 2 divisors, whose sum is σ = 50245535382. Its totient is φ = 50245535380.

The previous prime is 50245535341. The next prime is 50245535441. The reversal of 50245535381 is 18353554205.

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., 36850945156 + 13394590225 = 191966^2 + 115735^2 .

It is a cyclic number.

It is not a de Polignac number, because 50245535381 - 2³⁰ = 49171793557 is a prime.

It is a super-2 number, since 2×50245535381² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50245535341) 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, 25122767690 + 25122767691.

It is an arithmetic number, because the mean of its divisors is an integer number (25122767691).

Almost surely, 2^50245535381 is an apocalyptic number.

It is an amenable number.

50245535381 is a deficient number, since it is larger than the sum of its proper divisors (1).

50245535381 is an equidigital number, since it uses as much as digits as its factorization.

50245535381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 50245535381 in words is "fifty billion, two hundred forty-five million, five hundred thirty-five thousand, three hundred eighty-one".