8625564 has 72 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 2714400.

The previous prime is 8625559. The next prime is 8625587. The reversal of 8625564 is 4655268.

8625564 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

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, 65779 + ... + 65909.

It is an arithmetic number, because the mean of its divisors is an integer number (320320).

Almost surely, 2^8625564 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 8625564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11531520).

8625564 is an abundant number, since it is smaller than the sum of its proper divisors (14437476).

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

8625564 is a wasteful number, since it uses less digits than its factorization.

8625564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 226 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 8625564 is about 2936.9310512847. The cubic root of 8625564 is about 205.0827665001.

The spelling of 8625564 in words is "eight million, six hundred twenty-five thousand, five hundred sixty-four".