8553564 has 36 divisors (see below), whose sum is σ = 22034376. Its totient is φ = 2796768.

The previous prime is 8553563. The next prime is 8553569. The reversal of 8553564 is 4653558.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8553563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 334 + ... + 4149.

It is an arithmetic number, because the mean of its divisors is an integer number (612066).

Almost surely, 2^8553564 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 8553564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11017188).

8553564 is an abundant number, since it is smaller than the sum of its proper divisors (13480812).

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

8553564 is a wasteful number, since it uses less digits than its factorization.

8553564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546 (or 4541 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 8553564 is about 2924.6476710879. The cubic root of 8553564 is about 204.5105435907.

The spelling of 8553564 in words is "eight million, five hundred fifty-three thousand, five hundred sixty-four".