8245451520 has 432 divisors, whose sum is σ = 30683644992. Its totient is φ = 2036858880.

The previous prime is 8245451519. The next prime is 8245451551. The reversal of 8245451520 is 251545428.

8245451520 is a `hidden beast` number, since 82 + 4 + 5 + 4 + 51 + 520 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13904344 + ... + 13904936.

It is an arithmetic number, because the mean of its divisors is an integer number (71026956).

Almost surely, 2^8245451520 is an apocalyptic number.

8245451520 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 8245451520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15341822496).

8245451520 is an abundant number, since it is smaller than the sum of its proper divisors (22438193472).

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

8245451520 is a wasteful number, since it uses less digits than its factorization.

8245451520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 8245451520 is about 90804.4686125083. The cubic root of 8245451520 is about 2020.2485986234.

Adding to 8245451520 its reverse (251545428), we get a palindrome (8496996948).

The spelling of 8245451520 in words is "eight billion, two hundred forty-five million, four hundred fifty-one thousand, five hundred twenty".