563855447 has 4 divisors (see below), whose sum is σ = 563905296. Its totient is φ = 563805600.

The previous prime is 563855441. The next prime is 563855449. The reversal of 563855447 is 744558365.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 563855447 - 2¹⁶ = 563789911 is a prime.

It is a super-2 number, since 2×563855447² = 635865930223139618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563855441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103 + ... + 33599.

It is an arithmetic number, because the mean of its divisors is an integer number (140976324).

Almost surely, 2^563855447 is an apocalyptic number.

563855447 is a deficient number, since it is larger than the sum of its proper divisors (49849).

563855447 is a wasteful number, since it uses less digits than its factorization.

563855447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49848.

The product of its digits is 2016000, while the sum is 47.

The square root of 563855447 is about 23745.6405893798. The cubic root of 563855447 is about 826.1443303380.

The spelling of 563855447 in words is "five hundred sixty-three million, eight hundred fifty-five thousand, four hundred forty-seven".