50505055511 has 4 divisors (see below), whose sum is σ = 50513203752. Its totient is φ = 50496907272.

The previous prime is 50505055499. The next prime is 50505055519. The reversal of 50505055511 is 11555050505.

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-50505055511 is a prime.

It is a super-2 number, since 2×50505055511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505055519) 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, 4064816 + ... + 4077221.

It is an arithmetic number, because the mean of its divisors is an integer number (12628300938).

Almost surely, 2^50505055511 is an apocalyptic number.

50505055511 is a deficient number, since it is larger than the sum of its proper divisors (8148241).

50505055511 is an equidigital number, since it uses as much as digits as its factorization.

50505055511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8148240.

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 50505055511 in words is "fifty billion, five hundred five million, fifty-five thousand, five hundred eleven".