5455447321 has 9 divisors (see below), whose sum is σ = 5496300061. Its totient is φ = 5414897632.

The previous prime is 5455447253. The next prime is 5455447369. The reversal of 5455447321 is 1237445545.

The square root of 5455447321 is 73861.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3157203721 + 2298243600 = 56189^2 + 47940^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5455447321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5459447321) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17209455 + ... + 17209771.

Almost surely, 2^5455447321 is an apocalyptic number.

5455447321 is the 73861-st square number.

5455447321 is the 36931-st centered octagonal number.

It is an amenable number.

5455447321 is a deficient number, since it is larger than the sum of its proper divisors (40852740).

5455447321 is an frugal number, since it uses more digits than its factorization.

5455447321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 550 counting only the distinct ones).

The product of its digits is 336000, while the sum is 40.

The cubic root of 5455447321 is about 1760.3949829112.

The spelling of 5455447321 in words is "five billion, four hundred fifty-five million, four hundred forty-seven thousand, three hundred twenty-one".