20252220552 has 48 divisors (see below), whose sum is σ = 54908484540. Its totient is φ = 6743513088.

The previous prime is 20252220529. The next prime is 20252220589. The reversal of 20252220552 is 25502225202.

It can be written as a sum of positive squares in 2 ways, for example, as 14778292356 + 5473928196 = 121566^2 + 73986^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82633 + ... + 217560.

Almost surely, 2^20252220552 is an apocalyptic number.

It is an amenable number.

20252220552 is an abundant number, since it is smaller than the sum of its proper divisors (34656263988).

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

20252220552 is a wasteful number, since it uses less digits than its factorization.

20252220552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301142 (or 301135 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

Adding to 20252220552 its reverse (25502225202), we get a palindrome (45754445754).

The spelling of 20252220552 in words is "twenty billion, two hundred fifty-two million, two hundred twenty thousand, five hundred fifty-two".