225615424 has 28 divisors (see below), whose sum is σ = 471271600. Its totient is φ = 106869888.

The previous prime is 225615421. The next prime is 225615431. The reversal of 225615424 is 424516522.

It is not an unprimeable number, because it can be changed into a prime (225615421) 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 3 ways as a sum of consecutive naturals, for example, 91554 + ... + 93985.

Almost surely, 2^225615424 is an apocalyptic number.

It is an amenable number.

225615424 is an abundant number, since it is smaller than the sum of its proper divisors (245656176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225615424 is a wasteful number, since it uses less digits than its factorization.

225615424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185570 (or 185560 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 225615424 is about 15020.5001248294. The cubic root of 225615424 is about 608.7742329642.

The spelling of 225615424 in words is "two hundred twenty-five million, six hundred fifteen thousand, four hundred twenty-four".