225994989209 has 8 divisors (see below), whose sum is σ = 246543428352. Its totient is φ = 205447123440.

The previous prime is 225994989203. The next prime is 225994989211. The reversal of 225994989209 is 902989499522.

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 225994989209 - 2¹² = 225994985113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225994989203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1494872 + ... + 1639094.

It is an arithmetic number, because the mean of its divisors is an integer number (30817928544).

Almost surely, 2^225994989209 is an apocalyptic number.

It is an amenable number.

225994989209 is a deficient number, since it is larger than the sum of its proper divisors (20548439143).

225994989209 is a wasteful number, since it uses less digits than its factorization.

225994989209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286687.

The product of its (nonzero) digits is 75582720, while the sum is 68.

The spelling of 225994989209 in words is "two hundred twenty-five billion, nine hundred ninety-four million, nine hundred eighty-nine thousand, two hundred nine".