5215006225 has 81 divisors (see below), whose sum is σ = 7773706227. Its totient is φ = 3466320000.

The previous prime is 5215006219. The next prime is 5215006249. The reversal of 5215006225 is 5226005125.

The square root of 5215006225 is 72215.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 2328738049 + 2886268176 = 48257^2 + 53724^2 .

It is not a de Polignac number, because 5215006225 - 2⁹ = 5215005713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5215006193 and 5215006202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 51633675 + ... + 51633775.

Almost surely, 2^5215006225 is an apocalyptic number.

5215006225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5215006225 is the 72215-th square number.

5215006225 is the 36108-th centered octagonal number.

It is an amenable number.

5215006225 is a deficient number, since it is larger than the sum of its proper divisors (2558700002).

5215006225 is a wasteful number, since it uses less digits than its factorization.

5215006225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The cubic root of 5215006225 is about 1734.1431459026.

It can be divided in two parts, 521500 and 6225, that added together give a palindrome (527725).

The spelling of 5215006225 in words is "five billion, two hundred fifteen million, six thousand, two hundred twenty-five".