225479387 has 8 divisors (see below), whose sum is σ = 257856000. Its totient is φ = 193144104.

The previous prime is 225479357. The next prime is 225479389. The reversal of 225479387 is 783974522.

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 225479387 - 2⁶ = 225479323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225479389) 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, 2414 + ... + 21372.

It is an arithmetic number, because the mean of its divisors is an integer number (32232000).

Almost surely, 2^225479387 is an apocalyptic number.

225479387 is a deficient number, since it is larger than the sum of its proper divisors (32376613).

225479387 is a wasteful number, since it uses less digits than its factorization.

225479387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20665.

The product of its digits is 846720, while the sum is 47.

The square root of 225479387 is about 15015.9710641703. The cubic root of 225479387 is about 608.6518529287.

The spelling of 225479387 in words is "two hundred twenty-five million, four hundred seventy-nine thousand, three hundred eighty-seven".