225664735 has 16 divisors (see below), whose sum is σ = 273592800. Its totient is φ = 178678656.

The previous prime is 225664727. The next prime is 225664759. The reversal of 225664735 is 537466522.

It is a cyclic number.

It is not a de Polignac number, because 225664735 - 2³ = 225664727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304996 + ... + 305734.

It is an arithmetic number, because the mean of its divisors is an integer number (17099550).

Almost surely, 2^225664735 is an apocalyptic number.

225664735 is a deficient number, since it is larger than the sum of its proper divisors (47928065).

225664735 is a wasteful number, since it uses less digits than its factorization.

225664735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290.

The product of its digits is 302400, while the sum is 40.

The square root of 225664735 is about 15022.1414918113. The cubic root of 225664735 is about 608.8185814088.

The spelling of 225664735 in words is "two hundred twenty-five million, six hundred sixty-four thousand, seven hundred thirty-five".