5225445225 has 144 divisors (see below), whose sum is σ = 12566945664. Its totient is φ = 2004480000.

The previous prime is 5225445223. The next prime is 5225445241.

5225445225 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5225445225 - 2¹ = 5225445223 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5225445225.

It is not an unprimeable number, because it can be changed into a prime (5225445223) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 213625 + ... + 236825.

It is an arithmetic number, because the mean of its divisors is an integer number (87270456).

Almost surely, 2^5225445225 is an apocalyptic number.

5225445225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5225445225 is an abundant number, since it is smaller than the sum of its proper divisors (7341500439).

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

5225445225 is a wasteful number, since it uses less digits than its factorization.

5225445225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23248 (or 23240 counting only the distinct ones).

The product of its digits is 160000, while the sum is 36.

The square root of 5225445225 is about 72287.2410941239. The cubic root of 5225445225 is about 1735.2994663398.

It can be divided in two parts, 52254 and 45225, that added together give a palindrome (97479).

The spelling of 5225445225 in words is "five billion, two hundred twenty-five million, four hundred forty-five thousand, two hundred twenty-five".