225285280529 has 4 divisors (see below), whose sum is σ = 225300357684. Its totient is φ = 225270203376.

The previous prime is 225285280523. The next prime is 225285280541. The reversal of 225285280529 is 925082582522.

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 168937440400 + 56347840129 = 411020^2 + 237377^2 .

It is a cyclic number.

It is not a de Polignac number, because 225285280529 - 2⁸ = 225285280273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225285280523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7516142 + ... + 7546055.

It is an arithmetic number, because the mean of its divisors is an integer number (56325089421).

Almost surely, 2^225285280529 is an apocalyptic number.

It is an amenable number.

225285280529 is a deficient number, since it is larger than the sum of its proper divisors (15077155).

225285280529 is a wasteful number, since it uses less digits than its factorization.

225285280529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15077154.

The product of its (nonzero) digits is 2304000, while the sum is 50.

The spelling of 225285280529 in words is "two hundred twenty-five billion, two hundred eighty-five million, two hundred eighty thousand, five hundred twenty-nine".