445403025 has 36 divisors (see below), whose sum is σ = 825287580. Its totient is φ = 229353600.

The previous prime is 445403011. The next prime is 445403047. The reversal of 445403025 is 520304544.

It can be written as a sum of positive squares in 6 ways, for example, as 91699776 + 353703249 = 9576^2 + 18807^2 .

It is not a de Polignac number, because 445403025 - 2⁶ = 445402961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445403025.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27606 + ... + 40655.

It is an arithmetic number, because the mean of its divisors is an integer number (22924655).

Almost surely, 2^445403025 is an apocalyptic number.

445403025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

445403025 is a deficient number, since it is larger than the sum of its proper divisors (379884555).

445403025 is a wasteful number, since it uses less digits than its factorization.

445403025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68306 (or 68298 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 445403025 is about 21104.5735564593. The cubic root of 445403025 is about 763.6910848039.

Adding to 445403025 its reverse (520304544), we get a palindrome (965707569).

The spelling of 445403025 in words is "four hundred forty-five million, four hundred three thousand, twenty-five".