225725661577085 has 8 divisors (see below), whose sum is σ = 271097844020280. Its totient is φ = 180429162509824.

The previous prime is 225725661577043. The next prime is 225725661577121. The reversal of 225725661577085 is 580775166527522.

It can be written as a sum of positive squares in 4 ways, for example, as 144306535129 + 225581355041956 = 379877^2 + 15019366^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225725661577085 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18920837420 + ... + 18920849349.

It is an arithmetic number, because the mean of its divisors is an integer number (33887230502535).

Almost surely, 2^{225725661577085} is an apocalyptic number.

It is an amenable number.

225725661577085 is a deficient number, since it is larger than the sum of its proper divisors (45372182443195).

225725661577085 is a wasteful number, since it uses less digits than its factorization.

225725661577085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37841687967.

The product of its (nonzero) digits is 493920000, while the sum is 68.

The spelling of 225725661577085 in words is "two hundred twenty-five trillion, seven hundred twenty-five billion, six hundred sixty-one million, five hundred seventy-seven thousand, eighty-five".