225698642085 has 64 divisors (see below), whose sum is σ = 420964024320. Its totient is φ = 101116404480.

The previous prime is 225698642009. The next prime is 225698642107. The reversal of 225698642085 is 580246896522.

It is not a de Polignac number, because 225698642085 - 2⁸ = 225698641829 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5047456 + ... + 5091974.

It is an arithmetic number, because the mean of its divisors is an integer number (6577562880).

Almost surely, 2^225698642085 is an apocalyptic number.

It is an amenable number.

225698642085 is a deficient number, since it is larger than the sum of its proper divisors (195265382235).

225698642085 is a wasteful number, since it uses less digits than its factorization.

225698642085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45498.

The product of its (nonzero) digits is 16588800, while the sum is 57.

The spelling of 225698642085 in words is "two hundred twenty-five billion, six hundred ninety-eight million, six hundred forty-two thousand, eighty-five".