225249975009 has 40 divisors (see below), whose sum is σ = 338466078720. Its totient is φ = 149284620000.

The previous prime is 225249974987. The next prime is 225249975023. The reversal of 225249975009 is 900579942522.

225249975009 is a `hidden beast` number, since 2 + 2 + 5 + 2 + 49 + 97 + 500 + 9 = 666.

It is not a de Polignac number, because 225249975009 - 2²⁵ = 225216420577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225249975029) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10988832 + ... + 11009310.

It is an arithmetic number, because the mean of its divisors is an integer number (8461651968).

Almost surely, 2^225249975009 is an apocalyptic number.

It is an amenable number.

225249975009 is a deficient number, since it is larger than the sum of its proper divisors (113216103711).

225249975009 is a wasteful number, since it uses less digits than its factorization.

225249975009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21283 (or 21274 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 225249975009 in words is "two hundred twenty-five billion, two hundred forty-nine million, nine hundred seventy-five thousand, nine".