225000522 has 12 divisors (see below), whose sum is σ = 487501170. Its totient is φ = 75000168.

The previous prime is 225000509. The next prime is 225000541.

225000522 is nontrivially palindromic in base 10.

225000522 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 only one way, i.e., 160503561 + 64496961 = 12669^2 + 8031^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 12500029 = 225000522 / (2 + 2 + 5 + 0 + 0 + 0 + 5 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 225000495 and 225000504.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6249997 + ... + 6250032.

Almost surely, 2^225000522 is an apocalyptic number.

225000522 is an abundant number, since it is smaller than the sum of its proper divisors (262500648).

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

225000522 is a wasteful number, since it uses less digits than its factorization.

225000522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12500037 (or 12500034 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 225000522 is about 15000.0173999899. The cubic root of 225000522 is about 608.2206699139.

It can be divided in two parts, 225000 and 522, that added together give a palindrome (225522).

The spelling of 225000522 in words is "two hundred twenty-five million, five hundred twenty-two", and thus it is an aban number.