5549581026 has 168 divisors, whose sum is σ = 13920535440. Its totient is φ = 1657046160.

The previous prime is 5549581021. The next prime is 5549581039. The reversal of 5549581026 is 6201859455.

5549581026 is a `hidden beast` number, since 5 + 5 + 49 + 581 + 0 + 26 = 666.

It is not an unprimeable number, because it can be changed into a prime (5549581021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 14642505 + ... + 14642883.

It is an arithmetic number, because the mean of its divisors is an integer number (82860330).

Almost surely, 2^5549581026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5549581026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6960267720).

5549581026 is an abundant number, since it is smaller than the sum of its proper divisors (8370954414).

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

5549581026 is a wasteful number, since it uses less digits than its factorization.

5549581026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The square root of 5549581026 is about 74495.5101063145. The cubic root of 5549581026 is about 1770.4624990758.

The spelling of 5549581026 in words is "five billion, five hundred forty-nine million, five hundred eighty-one thousand, twenty-six".