20225553404 has 120 divisors (see below), whose sum is σ = 43198142400. Its totient is φ = 8274806400.

The previous prime is 20225553391. The next prime is 20225553419. The reversal of 20225553404 is 40435552202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 28129757 + ... + 28130475.

It is an arithmetic number, because the mean of its divisors is an integer number (359984520).

Almost surely, 2^20225553404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20225553404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21599071200).

20225553404 is an abundant number, since it is smaller than the sum of its proper divisors (22972588996).

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

20225553404 is a wasteful number, since it uses less digits than its factorization.

20225553404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

The spelling of 20225553404 in words is "twenty billion, two hundred twenty-five million, five hundred fifty-three thousand, four hundred four".