8225502720 has 160 divisors (see below), whose sum is σ = 26346751200. Its totient is φ = 2189230080.

The previous prime is 8225502689. The next prime is 8225502739. The reversal of 8225502720 is 272055228.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7840756 + ... + 7841804.

It is an arithmetic number, because the mean of its divisors is an integer number (164667195).

Almost surely, 2^8225502720 is an apocalyptic number.

8225502720 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 8225502720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13173375600).

8225502720 is an abundant number, since it is smaller than the sum of its proper divisors (18121248480).

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

8225502720 is a wasteful number, since it uses less digits than its factorization.

8225502720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096 (or 2080 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 8225502720 is about 90694.5572788136. The cubic root of 8225502720 is about 2018.6180398300.

Adding to 8225502720 its reverse (272055228), we get a palindrome (8497557948).

The spelling of 8225502720 in words is "eight billion, two hundred twenty-five million, five hundred two thousand, seven hundred twenty".