225849880409 has 4 divisors (see below), whose sum is σ = 237736716240. Its totient is φ = 213963044580.

The previous prime is 225849880313. The next prime is 225849880427. The reversal of 225849880409 is 904088948522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225849880409 - 2²⁴ = 225833103193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225849880439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5943417887 + ... + 5943417924.

It is an arithmetic number, because the mean of its divisors is an integer number (59434179060).

Almost surely, 2^225849880409 is an apocalyptic number.

It is an amenable number.

225849880409 is a deficient number, since it is larger than the sum of its proper divisors (11886835831).

225849880409 is a wasteful number, since it uses less digits than its factorization.

225849880409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11886835830.

The product of its (nonzero) digits is 13271040, while the sum is 59.

The spelling of 225849880409 in words is "two hundred twenty-five billion, eight hundred forty-nine million, eight hundred eighty thousand, four hundred nine".