225173042 has 4 divisors (see below), whose sum is σ = 337759566. Its totient is φ = 112586520.

The previous prime is 225173033. The next prime is 225173093. The reversal of 225173042 is 240371522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240371522 = 2 ⋅120185761.

It can be written as a sum of positive squares in only one way, i.e., 210801361 + 14371681 = 14519^2 + 3791^2 .

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 as a sum of consecutive naturals, namely, 56293259 + ... + 56293262.

Almost surely, 2^225173042 is an apocalyptic number.

225173042 is a deficient number, since it is larger than the sum of its proper divisors (112586524).

225173042 is a wasteful number, since it uses less digits than its factorization.

225173042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112586523.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 225173042 is about 15005.7669580732. The cubic root of 225173042 is about 608.3760820317.

The spelling of 225173042 in words is "two hundred twenty-five million, one hundred seventy-three thousand, forty-two".