5553997920 has 288 divisors, whose sum is σ = 21125875680. Its totient is φ = 1320468480.

The previous prime is 5553997907. The next prime is 5553997993. The reversal of 5553997920 is 297993555.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 459150 + ... + 471090.

It is an arithmetic number, because the mean of its divisors is an integer number (73353735).

Almost surely, 2^5553997920 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 5553997920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10562937840).

5553997920 is an abundant number, since it is smaller than the sum of its proper divisors (15571877760).

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

5553997920 is a wasteful number, since it uses less digits than its factorization.

5553997920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11998 (or 11987 counting only the distinct ones).

The product of its (nonzero) digits is 3827250, while the sum is 54.

The square root of 5553997920 is about 74525.1495805275. The cubic root of 5553997920 is about 1770.9320763553.

The spelling of 5553997920 in words is "five billion, five hundred fifty-three million, nine hundred ninety-seven thousand, nine hundred twenty".