225530154 has 24 divisors (see below), whose sum is σ = 489526752. Its totient is φ = 75041640.

The previous prime is 225530147. The next prime is 225530167. The reversal of 225530154 is 451035522.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 694 + ... + 21249.

It is an arithmetic number, because the mean of its divisors is an integer number (20396948).

Almost surely, 2^225530154 is an apocalyptic number.

225530154 is an abundant number, since it is smaller than the sum of its proper divisors (263996598).

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

225530154 is a wasteful number, since it uses less digits than its factorization.

225530154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22522 (or 22519 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 225530154 is about 15017.6614024954. The cubic root of 225530154 is about 608.6975291068.

Adding to 225530154 its reverse (451035522), we get a palindrome (676565676).

The spelling of 225530154 in words is "two hundred twenty-five million, five hundred thirty thousand, one hundred fifty-four".