225917009298 has 18 divisors (see below), whose sum is σ = 489491222727. Its totient is φ = 75304997580.

The previous prime is 225917009281. The next prime is 225917009389. The reversal of 225917009298 is 892900719522.

225917009298 is a `hidden beast` number, since 22 + 591 + 7 + 0 + 0 + 9 + 29 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 112958504649 + 112958504649 = 336093^2 + 336093^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=336093.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1960543 + ... + 2072573.

Almost surely, 2^225917009298 is an apocalyptic number.

225917009298 is an abundant number, since it is smaller than the sum of its proper divisors (263574213429).

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

225917009298 is an frugal number, since it uses more digits than its factorization.

225917009298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224070 (or 112036 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 225917009298 in words is "two hundred twenty-five billion, nine hundred seventeen million, nine thousand, two hundred ninety-eight".