563303987 has 2 divisors, whose sum is σ = 563303988. Its totient is φ = 563303986.

The previous prime is 563303953. The next prime is 563304031. The reversal of 563303987 is 789303365.

It is an a-pointer prime, because the next prime (563304031) can be obtained adding 563303987 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 563303987 - 2⁸ = 563303731 is a prime.

It is a super-2 number, since 2×563303987² = 634622763540192338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (563303087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281651993 + 281651994.

It is an arithmetic number, because the mean of its divisors is an integer number (281651994).

Almost surely, 2^563303987 is an apocalyptic number.

563303987 is a deficient number, since it is larger than the sum of its proper divisors (1).

563303987 is an equidigital number, since it uses as much as digits as its factorization.

563303987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 563303987 is about 23734.0259332461. The cubic root of 563303987 is about 825.8749148587.

The spelling of 563303987 in words is "five hundred sixty-three million, three hundred three thousand, nine hundred eighty-seven".