225538499 has 8 divisors (see below), whose sum is σ = 231278208. Its totient is φ = 219810240.

The previous prime is 225538487. The next prime is 225538501. The reversal of 225538499 is 994835522.

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 225538499 - 2²⁴ = 208761283 is a prime.

It is a super-2 number, since 2×225538499² = 101735229062346002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225538459) 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, 48494 + ... + 52940.

It is an arithmetic number, because the mean of its divisors is an integer number (28909776).

Almost surely, 2^225538499 is an apocalyptic number.

225538499 is a deficient number, since it is larger than the sum of its proper divisors (5739709).

225538499 is a wasteful number, since it uses less digits than its factorization.

225538499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5725.

The product of its digits is 777600, while the sum is 47.

The square root of 225538499 is about 15017.9392394563. The cubic root of 225538499 is about 608.7050366294.

The spelling of 225538499 in words is "two hundred twenty-five million, five hundred thirty-eight thousand, four hundred ninety-nine".