20552003476 has 6 divisors (see below), whose sum is σ = 35966006090. Its totient is φ = 10276001736.

The previous prime is 20552003471. The next prime is 20552003491. The reversal of 20552003476 is 67430025502.

It can be written as a sum of positive squares in only one way, i.e., 15146224900 + 5405778576 = 123070^2 + 73524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552003471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2569000431 + ... + 2569000438.

Almost surely, 2^20552003476 is an apocalyptic number.

It is an amenable number.

20552003476 is a deficient number, since it is larger than the sum of its proper divisors (15414002614).

20552003476 is a wasteful number, since it uses less digits than its factorization.

20552003476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138000873 (or 5138000871 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 34.

Adding to 20552003476 its reverse (67430025502), we get a palindrome (87982028978).

The spelling of 20552003476 in words is "twenty billion, five hundred fifty-two million, three thousand, four hundred seventy-six".