522000225 has 18 divisors (see below), whose sum is σ = 934960806. Its totient is φ = 278400000.

The previous prime is 522000187. The next prime is 522000229.

522000225 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 3 ways, for example, as 38044224 + 483956001 = 6168^2 + 21999^2 .

It is not a de Polignac number, because 522000225 - 2⁶ = 522000161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 522000198 and 522000207.

It is not an unprimeable number, because it can be changed into a prime (522000229) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1159776 + ... + 1160225.

It is an arithmetic number, because the mean of its divisors is an integer number (51942267).

Almost surely, 2^522000225 is an apocalyptic number.

It is an amenable number.

522000225 is a deficient number, since it is larger than the sum of its proper divisors (412960581).

522000225 is a wasteful number, since it uses less digits than its factorization.

522000225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320017 (or 2320009 counting only the distinct ones).

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

The square root of 522000225 is about 22847.3242415824. The cubic root of 522000225 is about 805.1749038060.

It can be divided in two parts, 522000 and 225, that added together give a palindrome (522225).

The spelling of 522000225 in words is "five hundred twenty-two million, two hundred twenty-five", and thus it is an aban number.