563215164 has 12 divisors (see below), whose sum is σ = 1314168744. Its totient is φ = 187738384.

The previous prime is 563215129. The next prime is 563215171. The reversal of 563215164 is 461512365.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×563215164² = 634422641919093792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23467287 + ... + 23467310.

It is an arithmetic number, because the mean of its divisors is an integer number (109514062).

Almost surely, 2^563215164 is an apocalyptic number.

It is an amenable number.

563215164 is an abundant number, since it is smaller than the sum of its proper divisors (750953580).

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

563215164 is a wasteful number, since it uses less digits than its factorization.

563215164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46934604 (or 46934602 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 563215164 is about 23732.1546430155. The cubic root of 563215164 is about 825.8315039916.

The spelling of 563215164 in words is "five hundred sixty-three million, two hundred fifteen thousand, one hundred sixty-four".