225724370565 has 96 divisors (see below), whose sum is σ = 380511331200. Its totient is φ = 114243333120.

The previous prime is 225724370563. The next prime is 225724370603. The reversal of 225724370565 is 565073427522.

It is not a de Polignac number, because 225724370565 - 2¹ = 225724370563 is a prime.

It is a super-3 number, since 3×225724370565³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225724370561) 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 95 ways as a sum of consecutive naturals, for example, 191129275 + ... + 191130455.

It is an arithmetic number, because the mean of its divisors is an integer number (3963659700).

Almost surely, 2^225724370565 is an apocalyptic number.

It is an amenable number.

225724370565 is a deficient number, since it is larger than the sum of its proper divisors (154786960635).

225724370565 is a wasteful number, since it uses less digits than its factorization.

225724370565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1466 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 48.

The spelling of 225724370565 in words is "two hundred twenty-five billion, seven hundred twenty-four million, three hundred seventy thousand, five hundred sixty-five".