225024520 has 32 divisors (see below), whose sum is σ = 578635200. Its totient is φ = 77151168.

The previous prime is 225024511. The next prime is 225024521. The reversal of 225024520 is 25420522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 225024491 and 225024500.

It is not an unprimeable number, because it can be changed into a prime (225024521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401550 + ... + 402109.

It is an arithmetic number, because the mean of its divisors is an integer number (18082350).

Almost surely, 2^225024520 is an apocalyptic number.

225024520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225024520 is an abundant number, since it is smaller than the sum of its proper divisors (353610680).

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

225024520 is a wasteful number, since it uses less digits than its factorization.

225024520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803677 (or 803673 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 225024520 is about 15000.8173110668. The cubic root of 225024520 is about 608.2422929167.

The spelling of 225024520 in words is "two hundred twenty-five million, twenty-four thousand, five hundred twenty".