225352320 has 64 divisors (see below), whose sum is σ = 718316640. Its totient is φ = 60093440.

The previous prime is 225352297. The next prime is 225352327. The reversal of 225352320 is 23253522.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is not an unprimeable number, because it can be changed into a prime (225352327) 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 7 ways as a sum of consecutive naturals, for example, 56766 + ... + 60605.

Almost surely, 2^225352320 is an apocalyptic number.

225352320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225352320 is an abundant number, since it is smaller than the sum of its proper divisors (492964320).

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

225352320 is a wasteful number, since it uses less digits than its factorization.

225352320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117393 (or 117381 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 225352320 is about 15011.7394062114. The cubic root of 225352320 is about 608.5374979114.

The spelling of 225352320 in words is "two hundred twenty-five million, three hundred fifty-two thousand, three hundred twenty".