225403152 has 40 divisors (see below), whose sum is σ = 627084864. Its totient is φ = 69354624.

The previous prime is 225403147. The next prime is 225403169. The reversal of 225403152 is 251304522.

It is a super-3 number, since 3×225403152³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 179988 + ... + 181235.

Almost surely, 2^225403152 is an apocalyptic number.

It is an amenable number.

225403152 is an abundant number, since it is smaller than the sum of its proper divisors (401681712).

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

225403152 is a wasteful number, since it uses less digits than its factorization.

225403152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361247 (or 361241 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 225403152 is about 15013.4323857005. The cubic root of 225403152 is about 608.5832497554.

Adding to 225403152 its reverse (251304522), we get a palindrome (476707674).

The spelling of 225403152 in words is "two hundred twenty-five million, four hundred three thousand, one hundred fifty-two".