5581724544 has 384 divisors, whose sum is σ = 18712512000. Its totient is φ = 1579253760.

The previous prime is 5581724537. The next prime is 5581724579. The reversal of 5581724544 is 4454271855.

5581724544 is a `hidden beast` number, since 5 + 5 + 81 + 7 + 24 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 5581724544.

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, 23354377 + ... + 23354615.

It is an arithmetic number, because the mean of its divisors is an integer number (48730500).

Almost surely, 2^5581724544 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 5581724544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9356256000).

5581724544 is an abundant number, since it is smaller than the sum of its proper divisors (13130787456).

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

5581724544 is a wasteful number, since it uses less digits than its factorization.

5581724544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 371 counting only the distinct ones).

The product of its digits is 896000, while the sum is 45.

The square root of 5581724544 is about 74710.9399218080. The cubic root of 5581724544 is about 1773.8741303234.

The spelling of 5581724544 in words is "five billion, five hundred eighty-one million, seven hundred twenty-four thousand, five hundred forty-four".