225623480 has 96 divisors (see below), whose sum is σ = 555001200. Its totient is φ = 82317312.

The previous prime is 225623479. The next prime is 225623557. The reversal of 225623480 is 84326522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 638984 + ... + 639336.

Almost surely, 2^225623480 is an apocalyptic number.

225623480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225623480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277500600).

225623480 is an abundant number, since it is smaller than the sum of its proper divisors (329377720).

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

225623480 is a wasteful number, since it uses less digits than its factorization.

225623480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 225623480 is about 15020.7682892720. The cubic root of 225623480 is about 608.7814786668.

The spelling of 225623480 in words is "two hundred twenty-five million, six hundred twenty-three thousand, four hundred eighty".