225773906 has 8 divisors (see below), whose sum is σ = 358582140. Its totient is φ = 106246528.

The previous prime is 225773879. The next prime is 225773917. The reversal of 225773906 is 609377522.

It can be written as a sum of positive squares in 2 ways, for example, as 223771681 + 2002225 = 14959^2 + 1415^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3320171 + ... + 3320238.

Almost surely, 2^225773906 is an apocalyptic number.

225773906 is a deficient number, since it is larger than the sum of its proper divisors (132808234).

225773906 is a wasteful number, since it uses less digits than its factorization.

225773906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6640428.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 225773906 is about 15025.7747221233. The cubic root of 225773906 is about 608.9167426894.

The spelling of 225773906 in words is "two hundred twenty-five million, seven hundred seventy-three thousand, nine hundred six".