563279616 has 144 divisors (see below), whose sum is σ = 1677715200. Its totient is φ = 186412032.

The previous prime is 563279603. The next prime is 563279617. The reversal of 563279616 is 616972365.

563279616 is a `hidden beast` number, since 5 + 6 + 3 + 27 + 9 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×563279616² = 634567851602214912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563279617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1568845 + ... + 1569203.

It is an arithmetic number, because the mean of its divisors is an integer number (11650800).

Almost surely, 2^563279616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 563279616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (838857600).

563279616 is an abundant number, since it is smaller than the sum of its proper divisors (1114435584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

563279616 is a wasteful number, since it uses less digits than its factorization.

563279616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 591 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 563279616 is about 23733.5125086870. The cubic root of 563279616 is about 825.8630043638.

The spelling of 563279616 in words is "five hundred sixty-three million, two hundred seventy-nine thousand, six hundred sixteen".