225323420445 has 12 divisors (see below), whose sum is σ = 390560595516. Its totient is φ = 120172490880.

The previous prime is 225323420437. The next prime is 225323420453. The reversal of 225323420445 is 544024323522.

225323420445 is a `hidden beast` number, since 225 + 3 + 2 + 3 + 420 + 4 + 4 + 5 = 666.

225323420445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (225323420437) and next prime (225323420453).

It can be written as a sum of positive squares in 2 ways, for example, as 85242393369 + 140081027076 = 291963^2 + 374274^2 .

It is not a de Polignac number, because 225323420445 - 2³ = 225323420437 is a prime.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2503593516 + ... + 2503593605.

It is an arithmetic number, because the mean of its divisors is an integer number (32546716293).

Almost surely, 2^225323420445 is an apocalyptic number.

It is an amenable number.

225323420445 is a deficient number, since it is larger than the sum of its proper divisors (165237175071).

225323420445 is a wasteful number, since it uses less digits than its factorization.

225323420445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007187132 (or 5007187129 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 225323420445 its reverse (544024323522), we get a palindrome (769347743967).

The spelling of 225323420445 in words is "two hundred twenty-five billion, three hundred twenty-three million, four hundred twenty thousand, four hundred forty-five".