8564506552 has 96 divisors (see below), whose sum is σ = 19283875200. Its totient is φ = 3553792704.

The previous prime is 8564506507. The next prime is 8564506571. The reversal of 8564506552 is 2556054658.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1546813 + ... + 1552339.

It is an arithmetic number, because the mean of its divisors is an integer number (200873700).

Almost surely, 2^8564506552 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 8564506552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9641937600).

8564506552 is an abundant number, since it is smaller than the sum of its proper divisors (10719368648).

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

8564506552 is a wasteful number, since it uses less digits than its factorization.

8564506552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5673 (or 5662 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 46.

The square root of 8564506552 is about 92544.6192493113. The cubic root of 8564506552 is about 2045.9771636205.

The spelling of 8564506552 in words is "eight billion, five hundred sixty-four million, five hundred six thousand, five hundred fifty-two".