50521642205 has 4 divisors (see below), whose sum is σ = 60625970652. Its totient is φ = 40417313760.

The previous prime is 50521642159. The next prime is 50521642211. The reversal of 50521642205 is 50224612505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50224612505 = 5 ⋅10044922501.

It can be written as a sum of positive squares in 2 ways, for example, as 9857709796 + 40663932409 = 99286^2 + 201653^2 .

It is not a de Polignac number, because 50521642205 - 2¹⁸ = 50521380061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5052164216 + ... + 5052164225.

It is an arithmetic number, because the mean of its divisors is an integer number (15156492663).

Almost surely, 2^50521642205 is an apocalyptic number.

It is an amenable number.

50521642205 is a deficient number, since it is larger than the sum of its proper divisors (10104328447).

50521642205 is a wasteful number, since it uses less digits than its factorization.

50521642205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10104328446.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 50521642205 in words is "fifty billion, five hundred twenty-one million, six hundred forty-two thousand, two hundred five".