20033253550 has 24 divisors (see below), whose sum is σ = 37270846656. Its totient is φ = 8011367040.

The previous prime is 20033253433. The next prime is 20033253587. The reversal of 20033253550 is 5535233002.

It is a congruent number.

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, 170659 + ... + 263041.

It is an arithmetic number, because the mean of its divisors is an integer number (1552951944).

Almost surely, 2^20033253550 is an apocalyptic number.

20033253550 is a deficient number, since it is larger than the sum of its proper divisors (17237593106).

20033253550 is a wasteful number, since it uses less digits than its factorization.

20033253550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96732 (or 96727 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 28.

Adding to 20033253550 its reverse (5535233002), we get a palindrome (25568486552).

The spelling of 20033253550 in words is "twenty billion, thirty-three million, two hundred fifty-three thousand, five hundred fifty".