4515522020 has 48 divisors (see below), whose sum is σ = 9757661760. Its totient is φ = 1754288256.

The previous prime is 4515522019. The next prime is 4515522023. The reversal of 4515522020 is 202255154.

It is a super-2 number, since 2×4515522020² = 40779878226209760800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4515522023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139274 + ... + 168606.

It is an arithmetic number, because the mean of its divisors is an integer number (203284620).

Almost surely, 2^4515522020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4515522020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4878830880).

4515522020 is an abundant number, since it is smaller than the sum of its proper divisors (5242139740).

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

4515522020 is a wasteful number, since it uses less digits than its factorization.

4515522020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29564 (or 29562 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 4515522020 is about 67197.6340357308. The cubic root of 4515522020 is about 1652.8596897921.

Adding to 4515522020 its reverse (202255154), we get a palindrome (4717777174).

The spelling of 4515522020 in words is "four billion, five hundred fifteen million, five hundred twenty-two thousand, twenty".