8553520 has 40 divisors (see below), whose sum is σ = 20534400. Its totient is φ = 3310080.

The previous prime is 8553497. The next prime is 8553527. The reversal of 8553520 is 253558.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (8553527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756 + ... + 4204.

It is an arithmetic number, because the mean of its divisors is an integer number (513360).

Almost surely, 2^8553520 is an apocalyptic number.

8553520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8553520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10267200).

8553520 is an abundant number, since it is smaller than the sum of its proper divisors (11980880).

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

8553520 is a wasteful number, since it uses less digits than its factorization.

8553520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493 (or 3487 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 8553520 is about 2924.6401488046. The cubic root of 8553520 is about 204.5101929190.

The spelling of 8553520 in words is "eight million, five hundred fifty-three thousand, five hundred twenty".