225580520 has 32 divisors (see below), whose sum is σ = 553698720. Its totient is φ = 82029120.

The previous prime is 225580517. The next prime is 225580529. The reversal of 225580520 is 25085522.

225580520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (225580529) 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, 255902 + ... + 256781.

It is an arithmetic number, because the mean of its divisors is an integer number (17303085).

Almost surely, 2^225580520 is an apocalyptic number.

225580520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225580520 is an abundant number, since it is smaller than the sum of its proper divisors (328118200).

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

225580520 is a wasteful number, since it uses less digits than its factorization.

225580520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512705 (or 512701 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 225580520 is about 15019.3382011326. The cubic root of 225580520 is about 608.7428377234.

The spelling of 225580520 in words is "two hundred twenty-five million, five hundred eighty thousand, five hundred twenty".