505700955863 has 4 divisors (see below), whose sum is σ = 527687953968. Its totient is φ = 483713957760.

The previous prime is 505700955853. The next prime is 505700955869. The reversal of 505700955863 is 368559007505.

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

It is a cyclic number.

It is not a de Polignac number, because 505700955863 - 2¹⁰ = 505700954839 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 (505700955869) 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, 10993499018 + ... + 10993499063.

It is an arithmetic number, because the mean of its divisors is an integer number (131921988492).

Almost surely, 2^505700955863 is an apocalyptic number.

505700955863 is a deficient number, since it is larger than the sum of its proper divisors (21986998105).

505700955863 is a wasteful number, since it uses less digits than its factorization.

505700955863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21986998104.

The product of its (nonzero) digits is 5670000, while the sum is 53.

The spelling of 505700955863 in words is "five hundred five billion, seven hundred million, nine hundred fifty-five thousand, eight hundred sixty-three".