225280801 has 4 divisors (see below), whose sum is σ = 225573012. Its totient is φ = 224988592.

The previous prime is 225280789. The next prime is 225280819. The reversal of 225280801 is 108082522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 108082522 = 2 ⋅54041261.

It can be written as a sum of positive squares in 2 ways, for example, as 55890576 + 169390225 = 7476^2 + 13015^2 .

It is a cyclic number.

It is not a de Polignac number, because 225280801 - 2¹⁵ = 225248033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225280801.

It is not an unprimeable number, because it can be changed into a prime (225280201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144946 + ... + 146491.

It is an arithmetic number, because the mean of its divisors is an integer number (56393253).

Almost surely, 2^225280801 is an apocalyptic number.

It is an amenable number.

225280801 is a deficient number, since it is larger than the sum of its proper divisors (292211).

225280801 is an equidigital number, since it uses as much as digits as its factorization.

225280801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292210.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 225280801 is about 15009.3571148134. The cubic root of 225280801 is about 608.4731148774.

The spelling of 225280801 in words is "two hundred twenty-five million, two hundred eighty thousand, eight hundred one".