50012778593 has 4 divisors (see below), whose sum is σ = 50455369668. Its totient is φ = 49570187520.

The previous prime is 50012778589. The next prime is 50012778619. The reversal of 50012778593 is 39587721005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7222960144 + 42789818449 = 84988^2 + 206857^2 .

It is a cyclic number.

It is not a de Polignac number, because 50012778593 - 2² = 50012778589 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50012778503) 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, 221295368 + ... + 221295593.

It is an arithmetic number, because the mean of its divisors is an integer number (12613842417).

Almost surely, 2^50012778593 is an apocalyptic number.

It is an amenable number.

50012778593 is a deficient number, since it is larger than the sum of its proper divisors (442591075).

50012778593 is a wasteful number, since it uses less digits than its factorization.

50012778593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442591074.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 50012778593 in words is "fifty billion, twelve million, seven hundred seventy-eight thousand, five hundred ninety-three".