225020 has 12 divisors (see below), whose sum is σ = 472584. Its totient is φ = 90000.

The previous prime is 224993. The next prime is 225023. The reversal of 225020 is 20522.

It is a junction number, because it is equal to n+sod(n) for n = 224992 and 225010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225023) by changing a digit.

225020 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 5606 + ... + 5645.

It is an arithmetic number, because the mean of its divisors is an integer number (39382).

2²²⁵⁰²⁰ is an apocalyptic number.

225020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225020 is an abundant number, since it is smaller than the sum of its proper divisors (247564).

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

225020 is a wasteful number, since it uses less digits than its factorization.

225020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11260 (or 11258 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 225020 is about 474.3627304079. The cubic root of 225020 is about 60.8238220363.

Adding to 225020 its reverse (20522), we get a palindrome (245542).

The spelling of 225020 in words is "two hundred twenty-five thousand, twenty".