225175442 has 8 divisors (see below), whose sum is σ = 338183100. Its totient is φ = 112447744.

The previous prime is 225175427. The next prime is 225175463. The reversal of 225175442 is 244571522.

It can be written as a sum of positive squares in 2 ways, for example, as 219069601 + 6105841 = 14801^2 + 2471^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 225175399 and 225175408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67967 + ... + 71202.

Almost surely, 2^225175442 is an apocalyptic number.

225175442 is a deficient number, since it is larger than the sum of its proper divisors (113007658).

225175442 is a wasteful number, since it uses less digits than its factorization.

225175442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139980.

The product of its digits is 22400, while the sum is 32.

The square root of 225175442 is about 15005.8469271148. The cubic root of 225175442 is about 608.3782434766.

The spelling of 225175442 in words is "two hundred twenty-five million, one hundred seventy-five thousand, four hundred forty-two".