505404453563 has 16 divisors (see below), whose sum is σ = 536473069920. Its totient is φ = 474485147136.

The previous prime is 505404453553. The next prime is 505404453583. The reversal of 505404453563 is 365354404505.

It is a de Polignac number, because none of the positive numbers 2^k-505404453563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505404453503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60763481 + ... + 60771797.

It is an arithmetic number, because the mean of its divisors is an integer number (33529566870).

Almost surely, 2^505404453563 is an apocalyptic number.

505404453563 is a deficient number, since it is larger than the sum of its proper divisors (31068616357).

505404453563 is a wasteful number, since it uses less digits than its factorization.

505404453563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16846.

The product of its (nonzero) digits is 2160000, while the sum is 44.

The spelling of 505404453563 in words is "five hundred five billion, four hundred four million, four hundred fifty-three thousand, five hundred sixty-three".