8552640 has 112 divisors (see below), whose sum is σ = 27797760. Its totient is φ = 2227200.

The previous prime is 8552629. The next prime is 8552647. The reversal of 8552640 is 462558.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 8552598 and 8552607.

It is not an unprimeable number, because it can be changed into a prime (8552647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56565 + ... + 56715.

Almost surely, 2^8552640 is an apocalyptic number.

8552640 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 8552640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13898880).

8552640 is an abundant number, since it is smaller than the sum of its proper divisors (19245120).

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

8552640 is a wasteful number, since it uses less digits than its factorization.

8552640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 8552640 is about 2924.4896990757. The cubic root of 8552640 is about 204.5031792317.

It can be divided in two parts, 85 and 52640, that added together give a palindrome (52725).

The spelling of 8552640 in words is "eight million, five hundred fifty-two thousand, six hundred forty".