505055563 has 2 divisors, whose sum is σ = 505055564. Its totient is φ = 505055562.

The previous prime is 505055557. The next prime is 505055591. The reversal of 505055563 is 365550505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505055563 - 2⁵ = 505055531 is a prime.

It is a super-2 number, since 2×505055563² = 510162243434493938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (505055543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252527781 + 252527782.

It is an arithmetic number, because the mean of its divisors is an integer number (252527782).

Almost surely, 2^505055563 is an apocalyptic number.

505055563 is a deficient number, since it is larger than the sum of its proper divisors (1).

505055563 is an equidigital number, since it uses as much as digits as its factorization.

505055563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56250, while the sum is 34.

The square root of 505055563 is about 22473.4412807652. The cubic root of 505055563 is about 796.3666289800.

The spelling of 505055563 in words is "five hundred five million, fifty-five thousand, five hundred sixty-three".