20053224520 has 48 divisors (see below), whose sum is σ = 52486250940. Its totient is φ = 6875390592.

The previous prime is 20053224469. The next prime is 20053224523. The reversal of 20053224520 is 2542235002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20045462724 + 7761796 = 141582^2 + 2786^2 .

It is not an unprimeable number, because it can be changed into a prime (20053224523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5113659 + ... + 5117578.

Almost surely, 2^20053224520 is an apocalyptic number.

20053224520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20053224520 is an abundant number, since it is smaller than the sum of its proper divisors (32433026420).

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

20053224520 is a wasteful number, since it uses less digits than its factorization.

20053224520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10231262 (or 10231251 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 20053224520 its reverse (2542235002), we get a palindrome (22595459522).

The spelling of 20053224520 in words is "twenty billion, fifty-three million, two hundred twenty-four thousand, five hundred twenty".