443313025 has 9 divisors (see below), whose sum is σ = 549838723. Its totient is φ = 354566200.

The previous prime is 443313007. The next prime is 443313037. The reversal of 443313025 is 520313344.

The square root of 443313025 is 21055.

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

It can be written as a sum of positive squares in only one way, i.e., 159592689 + 283720336 = 12633^2 + 16844^2 .

It is not a de Polignac number, because 443313025 - 2¹⁹ = 442788737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 103170 + ... + 107380.

Almost surely, 2^443313025 is an apocalyptic number.

443313025 is the 21055-th square number.

443313025 is the 10528-th centered octagonal number.

It is an amenable number.

443313025 is a deficient number, since it is larger than the sum of its proper divisors (106525698).

443313025 is an frugal number, since it uses more digits than its factorization.

443313025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8432 (or 4216 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The cubic root of 443313025 is about 762.4947021042.

Multiplying 443313025 by its sum of digits (25), we get a square (11082825625 = 105275²).

443313025 divided by its sum of digits (25) gives a square (17732521 = 4211²).

Adding to 443313025 its reverse (520313344), we get a palindrome (963626369).

The spelling of 443313025 in words is "four hundred forty-three million, three hundred thirteen thousand, twenty-five".