650563 has 2 divisors, whose sum is σ = 650564. Its totient is φ = 650562.

The previous prime is 650549. The next prime is 650567. The reversal of 650563 is 365056.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650563 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is equal to p₅₂₈₆₄ and since 650563 and 52864 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (650567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325281 + 325282.

It is an arithmetic number, because the mean of its divisors is an integer number (325282).

2⁶⁵⁰⁵⁶³ is an apocalyptic number.

650563 is a deficient number, since it is larger than the sum of its proper divisors (1).

650563 is an equidigital number, since it uses as much as digits as its factorization.

650563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 650563 is about 806.5748570344. The cubic root of 650563 is about 86.6489131945.

The spelling of 650563 in words is "six hundred fifty thousand, five hundred sixty-three".