20533004404 has 24 divisors (see below), whose sum is σ = 39250411200. Its totient is φ = 9321031680.

The previous prime is 20533004363. The next prime is 20533004407. The reversal of 20533004404 is 40440033502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533004407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269584 + ... + 337255.

It is an arithmetic number, because the mean of its divisors is an integer number (1635433800).

Almost surely, 2^20533004404 is an apocalyptic number.

It is an amenable number.

20533004404 is a deficient number, since it is larger than the sum of its proper divisors (18717406796).

20533004404 is a wasteful number, since it uses less digits than its factorization.

20533004404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607623 (or 607621 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20533004404 its reverse (40440033502), we get a palindrome (60973037906).

The spelling of 20533004404 in words is "twenty billion, five hundred thirty-three million, four thousand, four hundred four".