225640502530065 has 96 divisors (see below), whose sum is σ = 472738417382400. Its totient is φ = 97257866348160.

The previous prime is 225640502530019. The next prime is 225640502530081. The reversal of 225640502530065 is 560035205046522.

225640502530065 is a `hidden beast` number, since 2 + 2 + 5 + 6 + 4 + 0 + 50 + 2 + 530 + 0 + 65 = 666.

It is not a de Polignac number, because 225640502530065 - 2¹² = 225640502525969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 225640502530065.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 88076035 + ... + 90601704.

It is an arithmetic number, because the mean of its divisors is an integer number (4924358514400).

Almost surely, 2^{225640502530065} is an apocalyptic number.

It is an amenable number.

225640502530065 is an abundant number, since it is smaller than the sum of its proper divisors (247097914852335).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225640502530065 is a wasteful number, since it uses less digits than its factorization.

225640502530065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178677987 (or 178677984 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

Adding to 225640502530065 its reverse (560035205046522), we get a palindrome (785675707576587).

The spelling of 225640502530065 in words is "two hundred twenty-five trillion, six hundred forty billion, five hundred two million, five hundred thirty thousand, sixty-five".