4425512520 has 256 divisors, whose sum is σ = 16137273600. Its totient is φ = 956067840.

The previous prime is 4425512519. The next prime is 4425512521. The reversal of 4425512520 is 252155244.

It is an interprime number because it is at equal distance from previous prime (4425512519) and next prime (4425512521).

It is a super-2 number, since 2×4425512520² = 39170322129353500800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (4425512521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 493194 + ... + 502086.

It is an arithmetic number, because the mean of its divisors is an integer number (63036225).

Almost surely, 2^4425512520 is an apocalyptic number.

4425512520 is a gapful number since it is divisible by the number (40) 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 4425512520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8068636800).

4425512520 is an abundant number, since it is smaller than the sum of its proper divisors (11711761080).

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

4425512520 is a wasteful number, since it uses less digits than its factorization.

4425512520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8960 (or 8956 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 4425512520 is about 66524.5257029315. The cubic root of 4425512520 is about 1641.8035532342.

Adding to 4425512520 its reverse (252155244), we get a palindrome (4677667764).

The spelling of 4425512520 in words is "four billion, four hundred twenty-five million, five hundred twelve thousand, five hundred twenty".