4225520020 has 24 divisors (see below), whose sum is σ = 9019063368. Its totient is φ = 1662499200.

The previous prime is 4225519981. The next prime is 4225520027. The reversal of 4225520020 is 200255224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4 + 4225520016 = 2^2 + 65004^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4225519973 and 4225520000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4225520027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730551 + ... + 1732990.

It is an arithmetic number, because the mean of its divisors is an integer number (375794307).

Almost surely, 2^4225520020 is an apocalyptic number.

It is an amenable number.

4225520020 is an abundant number, since it is smaller than the sum of its proper divisors (4793543348).

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

4225520020 is a wasteful number, since it uses less digits than its factorization.

4225520020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463611 (or 3463609 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4225520020 is about 65004.0000307673. Note that the first 4 decimals coincide. The cubic root of 4225520020 is about 1616.6898854260.

Adding to 4225520020 its reverse (200255224), we get a palindrome (4425775244).

The spelling of 4225520020 in words is "four billion, two hundred twenty-five million, five hundred twenty thousand, twenty".