5533581312 has 240 divisors, whose sum is σ = 18747966720. Its totient is φ = 1580138496.

The previous prime is 5533581289. The next prime is 5533581323. The reversal of 5533581312 is 2131853355.

5533581312 is a `hidden beast` number, since 5 + 5 + 335 + 8 + 1 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3095683 + ... + 3097469.

It is an arithmetic number, because the mean of its divisors is an integer number (78116528).

Almost surely, 2^5533581312 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 5533581312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9373983360).

5533581312 is an abundant number, since it is smaller than the sum of its proper divisors (13214385408).

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

5533581312 is an equidigital number, since it uses as much as digits as its factorization.

5533581312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831 (or 1799 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 5533581312 is about 74388.0454911943. The cubic root of 5533581312 is about 1768.7594179606.

The spelling of 5533581312 in words is "five billion, five hundred thirty-three million, five hundred eighty-one thousand, three hundred twelve".