225738565 has 16 divisors (see below), whose sum is σ = 292118400. Its totient is φ = 166473792.

The previous prime is 225738547. The next prime is 225738571. The reversal of 225738565 is 565837522.

It is a cyclic number.

It is not a de Polignac number, because 225738565 - 2⁷ = 225738437 is a prime.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 57846 + ... + 61624.

It is an arithmetic number, because the mean of its divisors is an integer number (18257400).

Almost surely, 2^225738565 is an apocalyptic number.

It is an amenable number.

225738565 is a deficient number, since it is larger than the sum of its proper divisors (66379835).

225738565 is a wasteful number, since it uses less digits than its factorization.

225738565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4716.

The product of its digits is 504000, while the sum is 43.

The square root of 225738565 is about 15024.5986635251. The cubic root of 225738565 is about 608.8849692368.

The spelling of 225738565 in words is "two hundred twenty-five million, seven hundred thirty-eight thousand, five hundred sixty-five".