225172678567 has 16 divisors (see below), whose sum is σ = 236266951680. Its totient is φ = 214301656800.

The previous prime is 225172678529. The next prime is 225172678589. The reversal of 225172678567 is 765876271522.

It is a cyclic number.

It is not a de Polignac number, because 225172678567 - 2¹⁵ = 225172645799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225172658567) 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, 14386648 + ... + 14402290.

It is an arithmetic number, because the mean of its divisors is an integer number (14766684480).

Almost surely, 2^225172678567 is an apocalyptic number.

225172678567 is a deficient number, since it is larger than the sum of its proper divisors (11094273113).

225172678567 is a wasteful number, since it uses less digits than its factorization.

225172678567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22734.

The product of its digits is 19756800, while the sum is 58.

The spelling of 225172678567 in words is "two hundred twenty-five billion, one hundred seventy-two million, six hundred seventy-eight thousand, five hundred sixty-seven".