20533311052 has 12 divisors (see below), whose sum is σ = 36010907296. Its totient is φ = 10244480400.

The previous prime is 20533311041. The next prime is 20533311053. The reversal of 20533311052 is 25011333502.

It is not an unprimeable number, because it can be changed into a prime (20533311053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5541699 + ... + 5545402.

Almost surely, 2^20533311052 is an apocalyptic number.

It is an amenable number.

20533311052 is a deficient number, since it is larger than the sum of its proper divisors (15477596244).

20533311052 is a wasteful number, since it uses less digits than its factorization.

20533311052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11087568 (or 11087566 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 20533311052 its reverse (25011333502), we get a palindrome (45544644554).

The spelling of 20533311052 in words is "twenty billion, five hundred thirty-three million, three hundred eleven thousand, fifty-two".