50005000055009 has 4 divisors (see below), whose sum is σ = 50006986691760. Its totient is φ = 50003013418260.

The previous prime is 50005000054963. The next prime is 50005000055047. The reversal of 50005000055009 is 90055000050005.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50005000055009 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 (50005000055509) 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, 993280619 + ... + 993330960.

It is an arithmetic number, because the mean of its divisors is an integer number (12501746672940).

Almost surely, 2^{50005000055009} is an apocalyptic number.

It is an amenable number.

50005000055009 is a deficient number, since it is larger than the sum of its proper divisors (1986636751).

50005000055009 is a wasteful number, since it uses less digits than its factorization.

50005000055009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986636750.

The product of its (nonzero) digits is 5625, while the sum is 29.

The spelling of 50005000055009 in words is "fifty trillion, five billion, fifty-five thousand, nine".