563323813 has 6 divisors (see below), whose sum is σ = 609989874. Its totient is φ = 519991056.

The previous prime is 563323807. The next prime is 563323819. The reversal of 563323813 is 318323365.

It is an interprime number because it is at equal distance from previous prime (563323807) and next prime (563323819).

It can be written as a sum of positive squares in 3 ways, for example, as 51523684 + 511800129 = 7178^2 + 22623^2 .

It is not a de Polignac number, because 563323813 - 2¹⁷ = 563192741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563323819) 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, 1666470 + ... + 1666807.

It is an arithmetic number, because the mean of its divisors is an integer number (101664979).

Almost surely, 2^563323813 is an apocalyptic number.

It is an amenable number.

563323813 is a deficient number, since it is larger than the sum of its proper divisors (46666061).

563323813 is a wasteful number, since it uses less digits than its factorization.

563323813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333303 (or 3333290 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

The square root of 563323813 is about 23734.4435999667. The cubic root of 563323813 is about 825.8846038865.

The spelling of 563323813 in words is "five hundred sixty-three million, three hundred twenty-three thousand, eight hundred thirteen".