225552946 has 4 divisors (see below), whose sum is σ = 338329422. Its totient is φ = 112776472.

The previous prime is 225552941. The next prime is 225552947. The reversal of 225552946 is 649255522.

225552946 is digitally balanced in base 2, 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: 649255522 = 2 ⋅324627761.

It can be written as a sum of positive squares in only one way, i.e., 170955625 + 54597321 = 13075^2 + 7389^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 225552899 and 225552908.

It is not an unprimeable number, because it can be changed into a prime (225552941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56388235 + ... + 56388238.

Almost surely, 2^225552946 is an apocalyptic number.

225552946 is a deficient number, since it is larger than the sum of its proper divisors (112776476).

225552946 is a wasteful number, since it uses less digits than its factorization.

225552946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112776475.

The product of its digits is 216000, while the sum is 40.

The square root of 225552946 is about 15018.4202231793. The cubic root of 225552946 is about 608.7180333372.

The spelling of 225552946 in words is "two hundred twenty-five million, five hundred fifty-two thousand, nine hundred forty-six".