5215550225 has 6 divisors (see below), whose sum is σ = 6467282310. Its totient is φ = 4172440160.

The previous prime is 5215550209. The next prime is 5215550227. The reversal of 5215550225 is 5220555125.

It can be written as a sum of positive squares in 3 ways, for example, as 68492176 + 5147058049 = 8276^2 + 71743^2 .

It is not a de Polignac number, because 5215550225 - 2⁴ = 5215550209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5215550191 and 5215550200.

It is not an unprimeable number, because it can be changed into a prime (5215550227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104310980 + ... + 104311029.

It is an arithmetic number, because the mean of its divisors is an integer number (1077880385).

Almost surely, 2^5215550225 is an apocalyptic number.

It is an amenable number.

5215550225 is a deficient number, since it is larger than the sum of its proper divisors (1251732085).

5215550225 is a wasteful number, since it uses less digits than its factorization.

5215550225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208622019 (or 208622014 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 32.

The square root of 5215550225 is about 72218.7664322785. The cubic root of 5215550225 is about 1734.2034424794.

The spelling of 5215550225 in words is "five billion, two hundred fifteen million, five hundred fifty thousand, two hundred twenty-five".