5521420800 has 720 divisors, whose sum is σ = 23271760512. Its totient is φ = 1223884800.

The previous prime is 5521420787. The next prime is 5521420811. The reversal of 5521420800 is 80241255.

It is a happy number.

5521420800 is a `hidden beast` number, since 552 + 14 + 20 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 33062317 + ... + 33062483.

Almost surely, 2^5521420800 is an apocalyptic number.

5521420800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5521420800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11635880256).

5521420800 is an abundant number, since it is smaller than the sum of its proper divisors (17750339712).

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

5521420800 is a wasteful number, since it uses less digits than its factorization.

5521420800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 5521420800 is about 74306.2635314144. The cubic root of 5521420800 is about 1767.4628016501.

The spelling of 5521420800 in words is "five billion, five hundred twenty-one million, four hundred twenty thousand, eight hundred".