50505555000001 has 4 divisors (see below), whose sum is σ = 52247125862100. Its totient is φ = 48763984137904.

The previous prime is 50505554999981. The next prime is 50505555000023. The reversal of 50505555000001 is 10000055550505.

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 40816778217601 + 9688776782400 = 6388801^2 + 3112680^2 .

It is a cyclic number.

It is not a de Polignac number, because 50505555000001 - 2⁵ = 50505554999969 is a prime.

It is a super-2 number, since 2×50505555000001² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50505555060001) 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, 870785431006 + ... + 870785431063.

It is an arithmetic number, because the mean of its divisors is an integer number (13061781465525).

Almost surely, 2^{50505555000001} is an apocalyptic number.

It is an amenable number.

50505555000001 is a deficient number, since it is larger than the sum of its proper divisors (1741570862099).

50505555000001 is a wasteful number, since it uses less digits than its factorization.

50505555000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741570862098.

The product of its (nonzero) digits is 15625, while the sum is 31.

The spelling of 50505555000001 in words is "fifty trillion, five hundred five billion, five hundred fifty-five million, one", and thus it is an aban number.