225814559 has 4 divisors (see below), whose sum is σ = 225855000. Its totient is φ = 225774120.

The previous prime is 225814549. The next prime is 225814591. The reversal of 225814559 is 955418522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 955418522 = 2 ⋅477709261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225814559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225814549) 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, 10184 + ... + 23565.

It is an arithmetic number, because the mean of its divisors is an integer number (56463750).

Almost surely, 2^225814559 is an apocalyptic number.

225814559 is a deficient number, since it is larger than the sum of its proper divisors (40441).

225814559 is an equidigital number, since it uses as much as digits as its factorization.

225814559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40440.

The product of its digits is 144000, while the sum is 41.

The square root of 225814559 is about 15027.1274367392. The cubic root of 225814559 is about 608.9532878143.

The spelling of 225814559 in words is "two hundred twenty-five million, eight hundred fourteen thousand, five hundred fifty-nine".