505563543 has 6 divisors (see below), whose sum is σ = 730258464. Its totient is φ = 337042356.

The previous prime is 505563517. The next prime is 505563563. The reversal of 505563543 is 345365505.

505563543 is a `hidden beast` number, since 5 + 0 + 55 + 63 + 543 = 666.

It is not a de Polignac number, because 505563543 - 2⁸ = 505563287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505563498 and 505563507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505563563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28086855 + ... + 28086872.

It is an arithmetic number, because the mean of its divisors is an integer number (121709744).

Almost surely, 2^505563543 is an apocalyptic number.

505563543 is a deficient number, since it is larger than the sum of its proper divisors (224694921).

505563543 is a wasteful number, since it uses less digits than its factorization.

505563543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56173733 (or 56173730 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The square root of 505563543 is about 22484.7402253173. The cubic root of 505563543 is about 796.6335321346.

The spelling of 505563543 in words is "five hundred five million, five hundred sixty-three thousand, five hundred forty-three".