50499994609 has 4 divisors (see below), whose sum is σ = 50500465060. Its totient is φ = 50499524160.

The previous prime is 50499994577. The next prime is 50499994613. The reversal of 50499994609 is 90649999405.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 45850800384 + 4649194225 = 214128^2 + 68185^2 .

It is a cyclic number.

It is not a de Polignac number, because 50499994609 - 2⁵ = 50499994577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50499994619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13357 + ... + 318085.

It is an arithmetic number, because the mean of its divisors is an integer number (12625116265).

Almost surely, 2^50499994609 is an apocalyptic number.

It is an amenable number.

50499994609 is a deficient number, since it is larger than the sum of its proper divisors (470451).

50499994609 is a wasteful number, since it uses less digits than its factorization.

50499994609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470450.

The product of its (nonzero) digits is 28343520, while the sum is 64.

The spelling of 50499994609 in words is "fifty billion, four hundred ninety-nine million, nine hundred ninety-four thousand, six hundred nine".