225122530 has 16 divisors (see below), whose sum is σ = 405398520. Its totient is φ = 90009472.

The previous prime is 225122519. The next prime is 225122533. The reversal of 225122530 is 35221522.

225122530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 165817129 + 59305401 = 12877^2 + 7701^2 .

It is not an unprimeable number, because it can be changed into a prime (225122533) 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, 32406 + ... + 38734.

Almost surely, 2^225122530 is an apocalyptic number.

225122530 is a deficient number, since it is larger than the sum of its proper divisors (180275990).

225122530 is a wasteful number, since it uses less digits than its factorization.

225122530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9893.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 225122530 is about 15004.0837774254. The cubic root of 225122530 is about 608.3305872564.

The spelling of 225122530 in words is "two hundred twenty-five million, one hundred twenty-two thousand, five hundred thirty".