225515524441 has 4 divisors (see below), whose sum is σ = 226393017012. Its totient is φ = 224638031872.

The previous prime is 225515524439. The next prime is 225515524477. The reversal of 225515524441 is 144425515522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 174978236416 + 50537288025 = 418304^2 + 224805^2 .

It is a cyclic number.

It is not a de Polignac number, because 225515524441 - 2¹ = 225515524439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225515524394 and 225515524403.

It is not an unprimeable number, because it can be changed into a prime (225515524141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438745900 + ... + 438746413.

It is an arithmetic number, because the mean of its divisors is an integer number (56598254253).

Almost surely, 2^225515524441 is an apocalyptic number.

It is an amenable number.

225515524441 is a deficient number, since it is larger than the sum of its proper divisors (877492571).

225515524441 is an equidigital number, since it uses as much as digits as its factorization.

225515524441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877492570.

The product of its digits is 320000, while the sum is 40.

It can be divided in two parts, 225515 and 524441, that added together give a square (749956 = 866²).

The spelling of 225515524441 in words is "two hundred twenty-five billion, five hundred fifteen million, five hundred twenty-four thousand, four hundred forty-one".