505363040255 has 4 divisors (see below), whose sum is σ = 606435648312. Its totient is φ = 404290432200.

The previous prime is 505363040243. The next prime is 505363040261. The reversal of 505363040255 is 552040363505.

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

It is not a de Polignac number, because 505363040255 - 2¹⁰ = 505363039231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50536304021 + ... + 50536304030.

It is an arithmetic number, because the mean of its divisors is an integer number (151608912078).

Almost surely, 2^505363040255 is an apocalyptic number.

505363040255 is a deficient number, since it is larger than the sum of its proper divisors (101072608057).

505363040255 is a wasteful number, since it uses less digits than its factorization.

505363040255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101072608056.

The product of its (nonzero) digits is 270000, while the sum is 38.

The spelling of 505363040255 in words is "five hundred five billion, three hundred sixty-three million, forty thousand, two hundred fifty-five".