50005551011011 has 4 divisors (see below), whose sum is σ = 50006794568272. Its totient is φ = 50004307453752.

The previous prime is 50005551010951. The next prime is 50005551011041. The reversal of 50005551011011 is 11011015550005.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50005551011011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50005551011041) 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, 621718311 + ... + 621798736.

It is an arithmetic number, because the mean of its divisors is an integer number (12501698642068).

Almost surely, 2^{50005551011011} is an apocalyptic number.

50005551011011 is a deficient number, since it is larger than the sum of its proper divisors (1243557261).

50005551011011 is a wasteful number, since it uses less digits than its factorization.

50005551011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243557260.

The product of its (nonzero) digits is 625, while the sum is 25.

Adding to 50005551011011 its reverse (11011015550005), we get a palindrome (61016566561016).

The spelling of 50005551011011 in words is "fifty trillion, five billion, five hundred fifty-one million, eleven thousand, eleven".