445222025 has 6 divisors (see below), whose sum is σ = 552075342. Its totient is φ = 356177600.

The previous prime is 445222021. The next prime is 445222033. The reversal of 445222025 is 520222544.

It can be written as a sum of positive squares in 3 ways, for example, as 141800464 + 303421561 = 11908^2 + 17419^2 .

It is not a de Polignac number, because 445222025 - 2² = 445222021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445221985 and 445222003.

It is not an unprimeable number, because it can be changed into a prime (445222021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8904416 + ... + 8904465.

It is an arithmetic number, because the mean of its divisors is an integer number (92012557).

Almost surely, 2^445222025 is an apocalyptic number.

It is an amenable number.

445222025 is a deficient number, since it is larger than the sum of its proper divisors (106853317).

445222025 is a wasteful number, since it uses less digits than its factorization.

445222025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17808891 (or 17808886 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 445222025 is about 21100.2849506825. The cubic root of 445222025 is about 763.5876228403.

Adding to 445222025 its reverse (520222544), we get a palindrome (965444569).

The spelling of 445222025 in words is "four hundred forty-five million, two hundred twenty-two thousand, twenty-five".