522545225 has 12 divisors (see below), whose sum is σ = 649388124. Its totient is φ = 417112320.

The previous prime is 522545197. The next prime is 522545251.

522545225 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 3297856 + 519247369 = 1816^2 + 22787^2 .

It is not a de Polignac number, because 522545225 - 2¹⁰ = 522544201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 522545191 and 522545200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11444 + ... + 34293.

It is an arithmetic number, because the mean of its divisors is an integer number (54115677).

Almost surely, 2^522545225 is an apocalyptic number.

It is an amenable number.

522545225 is a deficient number, since it is larger than the sum of its proper divisors (126842899).

522545225 is a wasteful number, since it uses less digits than its factorization.

522545225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46204 (or 46199 counting only the distinct ones).

The product of its digits is 40000, while the sum is 32.

The square root of 522545225 is about 22859.2481284928. The cubic root of 522545225 is about 805.4550235401.

Adding to 522545225 its product of digits (40000), we get a palindrome (522585225).

Subtracting from 522545225 its product of digits (40000), we obtain a palindrome (522505225).

The spelling of 522545225 in words is "five hundred twenty-two million, five hundred forty-five thousand, two hundred twenty-five".