225580525 has 6 divisors (see below), whose sum is σ = 279719882. Its totient is φ = 180464400.

The previous prime is 225580517. The next prime is 225580529. The reversal of 225580525 is 525085522.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6007401 + 219573124 = 2451^2 + 14818^2 .

It is not a de Polignac number, because 225580525 - 2³ = 225580517 is a prime.

It is a Duffinian number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 4511586 + ... + 4511635.

Almost surely, 2^225580525 is an apocalyptic number.

225580525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225580525 is a deficient number, since it is larger than the sum of its proper divisors (54139357).

225580525 is an equidigital number, since it uses as much as digits as its factorization.

225580525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9023231 (or 9023226 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The square root of 225580525 is about 15019.3383675846. The cubic root of 225580525 is about 608.7428422210.

The spelling of 225580525 in words is "two hundred twenty-five million, five hundred eighty thousand, five hundred twenty-five".