5581624256 has 56 divisors (see below), whose sum is σ = 11945258304. Its totient is φ = 2572416000.

The previous prime is 5581624253. The next prime is 5581624273. The reversal of 5581624256 is 6524261855.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581624253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620366 + ... + 629298.

It is an arithmetic number, because the mean of its divisors is an integer number (213308184).

Almost surely, 2^5581624256 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 5581624256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5972629152).

5581624256 is an abundant number, since it is smaller than the sum of its proper divisors (6363634048).

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

5581624256 is a wasteful number, since it uses less digits than its factorization.

5581624256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9709 (or 9699 counting only the distinct ones).

The product of its digits is 576000, while the sum is 44.

The square root of 5581624256 is about 74710.2687453338. The cubic root of 5581624256 is about 1773.8635064052.

The spelling of 5581624256 in words is "five billion, five hundred eighty-one million, six hundred twenty-four thousand, two hundred fifty-six".