225497799 has 12 divisors (see below), whose sum is σ = 326583400. Its totient is φ = 149932944.

The previous prime is 225497791. The next prime is 225497801. The reversal of 225497799 is 997794522.

225497799 is a `hidden beast` number, since 2 + 2 + 549 + 7 + 7 + 99 = 666.

It is not a de Polignac number, because 225497799 - 2³ = 225497791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225497791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29644 + ... + 36465.

Almost surely, 2^225497799 is an apocalyptic number.

225497799 is a deficient number, since it is larger than the sum of its proper divisors (101085601).

225497799 is a wasteful number, since it uses less digits than its factorization.

225497799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66494 (or 66491 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 225497799 is about 15016.5841322186. The cubic root of 225497799 is about 608.6684193993.

The spelling of 225497799 in words is "two hundred twenty-five million, four hundred ninety-seven thousand, seven hundred ninety-nine".