50247375521 has 4 divisors (see below), whose sum is σ = 57425572032. Its totient is φ = 43069179012.

The previous prime is 50247375481. The next prime is 50247375551. The reversal of 50247375521 is 12557374205.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12557374205 = 5 ⋅2511474841.

It is a cyclic number.

It is not a de Polignac number, because 50247375521 - 2¹⁸ = 50247113377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50247375551) 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 in 3 ways as a sum of consecutive naturals, for example, 3589098245 + ... + 3589098258.

It is an arithmetic number, because the mean of its divisors is an integer number (14356393008).

Almost surely, 2^50247375521 is an apocalyptic number.

It is an amenable number.

50247375521 is a deficient number, since it is larger than the sum of its proper divisors (7178196511).

50247375521 is an equidigital number, since it uses as much as digits as its factorization.

50247375521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7178196510.

The product of its (nonzero) digits is 294000, while the sum is 41.

The spelling of 50247375521 in words is "fifty billion, two hundred forty-seven million, three hundred seventy-five thousand, five hundred twenty-one".