225488947 has 8 divisors (see below), whose sum is σ = 238177280. Its totient is φ = 213139080.

The previous prime is 225488933. The next prime is 225488953. The reversal of 225488947 is 749884522.

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 225488947 - 2¹⁹ = 224964659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225488947.

It is not an unprimeable number, because it can be changed into a prime (225488927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83247 + ... + 85912.

It is an arithmetic number, because the mean of its divisors is an integer number (29772160).

Almost surely, 2^225488947 is an apocalyptic number.

225488947 is a deficient number, since it is larger than the sum of its proper divisors (12688333).

225488947 is a wasteful number, since it uses less digits than its factorization.

225488947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169233.

The product of its digits is 1290240, while the sum is 49.

The square root of 225488947 is about 15016.2893885274. The cubic root of 225488947 is about 608.6604547933.

The spelling of 225488947 in words is "two hundred twenty-five million, four hundred eighty-eight thousand, nine hundred forty-seven".