5220000225 has 72 divisors (see below), whose sum is σ = 10219783392. Its totient is φ = 2525894400.

The previous prime is 5220000223. The next prime is 5220000281.

5220000225 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5220000225 - 2¹ = 5220000223 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5220000198 and 5220000207.

It is not an unprimeable number, because it can be changed into a prime (5220000223) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1451029 + ... + 1454621.

It is an arithmetic number, because the mean of its divisors is an integer number (141941436).

Almost surely, 2^5220000225 is an apocalyptic number.

5220000225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5220000225 is a deficient number, since it is larger than the sum of its proper divisors (4999783167).

5220000225 is a wasteful number, since it uses less digits than its factorization.

5220000225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207 (or 4199 counting only the distinct ones).

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

The square root of 5220000225 is about 72249.5690298565. The cubic root of 5220000225 is about 1734.6965199885.

It can be divided in two parts, 5220000 and 225, that added together give a palindrome (5220225).

The spelling of 5220000225 in words is "five billion, two hundred twenty million, two hundred twenty-five", and thus it is an aban number.