225456523475565 has 64 divisors (see below), whose sum is σ = 370096326593280. Its totient is φ = 117130583900160.

The previous prime is 225456523475551. The next prime is 225456523475569. The reversal of 225456523475565 is 565574325654522.

It is not a de Polignac number, because 225456523475565 - 2¹⁵ = 225456523442797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225456523475496 and 225456523475505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225456523475569) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2661876297 + ... + 2661960993.

It is an arithmetic number, because the mean of its divisors is an integer number (5782755103020).

Almost surely, 2^{225456523475565} is an apocalyptic number.

It is an amenable number.

225456523475565 is a deficient number, since it is larger than the sum of its proper divisors (144639803117715).

225456523475565 is a wasteful number, since it uses less digits than its factorization.

225456523475565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91342.

The product of its digits is 1512000000, while the sum is 66.

The spelling of 225456523475565 in words is "two hundred twenty-five trillion, four hundred fifty-six billion, five hundred twenty-three million, four hundred seventy-five thousand, five hundred sixty-five".