505055280005 has 4 divisors (see below), whose sum is σ = 606066336012. Its totient is φ = 404044224000.

The previous prime is 505055279977. The next prime is 505055280007. The reversal of 505055280005 is 500082550505.

It is a happy number.

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 177273839521 + 327781440484 = 421039^2 + 572522^2 .

It is not a de Polignac number, because 505055280005 - 2³⁸ = 230177373061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505055280007) 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, 50505527996 + ... + 50505528005.

It is an arithmetic number, because the mean of its divisors is an integer number (151516584003).

Almost surely, 2^505055280005 is an apocalyptic number.

It is an amenable number.

505055280005 is a deficient number, since it is larger than the sum of its proper divisors (101011056007).

505055280005 is a wasteful number, since it uses less digits than its factorization.

505055280005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101011056006.

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 505055280005 in words is "five hundred five billion, fifty-five million, two hundred eighty thousand, five".