5216616225 has 18 divisors (see below), whose sum is σ = 9343539686. Its totient is φ = 2782195200.

The previous prime is 5216616221. The next prime is 5216616227. The reversal of 5216616225 is 5226166125.

5216616225 is a `hidden beast` number, since 5 + 2 + 16 + 616 + 2 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 7096896 + 5209519329 = 2664^2 + 72177^2 .

It is not a de Polignac number, because 5216616225 - 2² = 5216616221 is a prime.

It is a Duffinian number.

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 5216616225.

It is not an unprimeable number, because it can be changed into a prime (5216616221) 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, 11592256 + ... + 11592705.

Almost surely, 2^5216616225 is an apocalyptic number.

It is an amenable number.

5216616225 is a deficient number, since it is larger than the sum of its proper divisors (4126923461).

5216616225 is a wasteful number, since it uses less digits than its factorization.

5216616225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23184977 (or 23184969 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 5216616225 is about 72226.1464083472. The cubic root of 5216616225 is about 1734.3215850119.

The spelling of 5216616225 in words is "five billion, two hundred sixteen million, six hundred sixteen thousand, two hundred twenty-five".