225563237 has 8 divisors (see below), whose sum is σ = 229420800. Its totient is φ = 221724720.

The previous prime is 225563209. The next prime is 225563243. The reversal of 225563237 is 732365522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225563237 - 2²² = 221368933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225563197 and 225563206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225563287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20228 + ... + 29330.

It is an arithmetic number, because the mean of its divisors is an integer number (28677600).

Almost surely, 2^225563237 is an apocalyptic number.

It is an amenable number.

225563237 is a deficient number, since it is larger than the sum of its proper divisors (3857563).

225563237 is an equidigital number, since it uses as much as digits as its factorization.

225563237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9523.

The product of its digits is 75600, while the sum is 35.

The square root of 225563237 is about 15018.7628318713. The cubic root of 225563237 is about 608.7272909153.

The spelling of 225563237 in words is "two hundred twenty-five million, five hundred sixty-three thousand, two hundred thirty-seven".