5531454544 has 80 divisors (see below), whose sum is σ = 13451817600. Its totient is φ = 2140577280.

The previous prime is 5531454497. The next prime is 5531454547. The reversal of 5531454544 is 4454541355.

It is a junction number, because it is equal to n+sod(n) for n = 5531454497 and 5531454506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5531454547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168502 + ... + 198634.

It is an arithmetic number, because the mean of its divisors is an integer number (168147720).

Almost surely, 2^5531454544 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 5531454544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6725908800).

5531454544 is an abundant number, since it is smaller than the sum of its proper divisors (7920363056).

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

5531454544 is a wasteful number, since it uses less digits than its factorization.

5531454544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30308 (or 30302 counting only the distinct ones).

The product of its digits is 480000, while the sum is 40.

The square root of 5531454544 is about 74373.7490247735. The cubic root of 5531454544 is about 1768.5327881798.

Adding to 5531454544 its reverse (4454541355), we get a palindrome (9985995899).

The spelling of 5531454544 in words is "five billion, five hundred thirty-one million, four hundred fifty-four thousand, five hundred forty-four".