5481625444 has 9 divisors (see below), whose sum is σ = 9593103667. Its totient is φ = 2740738684.

The previous prime is 5481625427. The next prime is 5481625451. The reversal of 5481625444 is 4445261845.

It is a happy number.

The square root of 5481625444 is 74038.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5481625444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 129567 + ... + 166585.

Almost surely, 2^5481625444 is an apocalyptic number.

5481625444 is the 74038-th square number.

It is an amenable number.

5481625444 is a deficient number, since it is larger than the sum of its proper divisors (4111478223).

5481625444 is an frugal number, since it uses more digits than its factorization.

5481625444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74042 (or 37021 counting only the distinct ones).

The product of its digits is 614400, while the sum is 43.

The cubic root of 5481625444 is about 1763.2062599106.

The spelling of 5481625444 in words is "five billion, four hundred eighty-one million, six hundred twenty-five thousand, four hundred forty-four".