225224947 has 8 divisors (see below), whose sum is σ = 235176480. Its totient is φ = 215286720.

The previous prime is 225224939. The next prime is 225224969. The reversal of 225224947 is 749422522.

It is a happy number.

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 225224947 - 2³ = 225224939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225224977) 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, 48879 + ... + 53287.

It is an arithmetic number, because the mean of its divisors is an integer number (29397060).

Almost surely, 2^225224947 is an apocalyptic number.

225224947 is a deficient number, since it is larger than the sum of its proper divisors (9951533).

225224947 is a wasteful number, since it uses less digits than its factorization.

225224947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6653.

The product of its digits is 80640, while the sum is 37.

The square root of 225224947 is about 15007.4963601528. The cubic root of 225224947 is about 608.4228243566.

The spelling of 225224947 in words is "two hundred twenty-five million, two hundred twenty-four thousand, nine hundred forty-seven".