225994989601 has 8 divisors (see below), whose sum is σ = 226746408960.
Its totient is φ = 225244411392.
The previous prime is 225994989587. The next prime is 225994989707. The reversal of 225994989601 is 106989499522.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 225994989601 - 25 = 225994989569 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (225994989901) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330256 + ... + 749038.
It is an arithmetic number, because the mean of its divisors is an integer number (28343301120).
Almost surely, 2225994989601 is an apocalyptic number.
It is an amenable number.
225994989601 is a deficient number, since it is larger than the sum of its proper divisors (751419359).
225994989601 is a wasteful number, since it uses less digits than its factorization.
225994989601 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 420575.
The product of its (nonzero) digits is 25194240, while the sum is 64.
The spelling of 225994989601 in words is "two hundred twenty-five billion, nine hundred ninety-four million, nine hundred eighty-nine thousand, six hundred one".