225530530 has 16 divisors (see below), whose sum is σ = 407005560. Its totient is φ = 89978752.

The previous prime is 225530527. The next prime is 225530531. The reversal of 225530530 is 35035522.

It can be written as a sum of positive squares in 4 ways, for example, as 129117769 + 96412761 = 11363^2 + 9819^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225530495 and 225530504.

It is not an unprimeable number, because it can be changed into a prime (225530531) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25099 + ... + 32878.

Almost surely, 2^225530530 is an apocalyptic number.

225530530 is a deficient number, since it is larger than the sum of its proper divisors (181475030).

225530530 is a wasteful number, since it uses less digits than its factorization.

225530530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58373.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 225530530 is about 15017.6739210838. The cubic root of 225530530 is about 608.6978673766.

The spelling of 225530530 in words is "two hundred twenty-five million, five hundred thirty thousand, five hundred thirty".