225664406 has 32 divisors (see below), whose sum is σ = 399237120. Its totient is φ = 94543200.

The previous prime is 225664403. The next prime is 225664423. The reversal of 225664406 is 604466522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225664403) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8171 + ... + 22761.

It is an arithmetic number, because the mean of its divisors is an integer number (12476160).

Almost surely, 2^225664406 is an apocalyptic number.

225664406 is a deficient number, since it is larger than the sum of its proper divisors (173572714).

225664406 is a wasteful number, since it uses less digits than its factorization.

225664406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14660.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 225664406 is about 15022.1305413047. The cubic root of 225664406 is about 608.8182855401.

The spelling of 225664406 in words is "two hundred twenty-five million, six hundred sixty-four thousand, four hundred six".