225218282 has 4 divisors (see below), whose sum is σ = 337827426. Its totient is φ = 112609140.

The previous prime is 225218269. The next prime is 225218303. The reversal of 225218282 is 282812522.

225218282 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 282812522 = 2 ⋅141406261.

It can be written as a sum of positive squares in only one way, i.e., 126990361 + 98227921 = 11269^2 + 9911^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56304569 + ... + 56304572.

Almost surely, 2^225218282 is an apocalyptic number.

225218282 is a deficient number, since it is larger than the sum of its proper divisors (112609144).

225218282 is a wasteful number, since it uses less digits than its factorization.

225218282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112609143.

The product of its digits is 10240, while the sum is 32.

The square root of 225218282 is about 15007.2743028173. The cubic root of 225218282 is about 608.4168226856.

It can be divided in two parts, 22521 and 8282, that added together give a palindrome (30803).

The spelling of 225218282 in words is "two hundred twenty-five million, two hundred eighteen thousand, two hundred eighty-two".