522404225 has 24 divisors (see below), whose sum is σ = 741702528. Its totient is φ = 357552000.

The previous prime is 522404209. The next prime is 522404227.

522404225 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 522404225 - 2⁴ = 522404209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 522404194 and 522404203.

It is not an unprimeable number, because it can be changed into a prime (522404227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102692 + ... + 107658.

It is an arithmetic number, because the mean of its divisors is an integer number (30904272).

Almost surely, 2^522404225 is an apocalyptic number.

It is an amenable number.

522404225 is a deficient number, since it is larger than the sum of its proper divisors (219298303).

522404225 is a wasteful number, since it uses less digits than its factorization.

522404225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585 (or 5580 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 522404225 is about 22856.1638294793. The cubic root of 522404225 is about 805.3825708800.

It can be divided in two parts, 52240 and 4225, that added together give a palindrome (56465).

The spelling of 522404225 in words is "five hundred twenty-two million, four hundred four thousand, two hundred twenty-five".