225143565 has 16 divisors (see below), whose sum is σ = 361637568. Its totient is φ = 119607296.

The previous prime is 225143561. The next prime is 225143579. The reversal of 225143565 is 565341522.

It is a cyclic number.

It is not a de Polignac number, because 225143565 - 2² = 225143561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225143561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25347 + ... + 33056.

It is an arithmetic number, because the mean of its divisors is an integer number (22602348).

Almost surely, 2^225143565 is an apocalyptic number.

It is an amenable number.

225143565 is a deficient number, since it is larger than the sum of its proper divisors (136494003).

225143565 is a wasteful number, since it uses less digits than its factorization.

225143565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58668.

The product of its digits is 36000, while the sum is 33.

The square root of 225143565 is about 15004.7847368764. The cubic root of 225143565 is about 608.3495337317.

The spelling of 225143565 in words is "two hundred twenty-five million, one hundred forty-three thousand, five hundred sixty-five".