5212661225 has 6 divisors (see below), whose sum is σ = 6463699950. Its totient is φ = 4170128960.

The previous prime is 5212661221. The next prime is 5212661249. The reversal of 5212661225 is 5221662125.

It can be written as a sum of positive squares in 3 ways, for example, as 79798489 + 5132862736 = 8933^2 + 71644^2 .

It is not a de Polignac number, because 5212661225 - 2² = 5212661221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5212661191 and 5212661200.

It is not an unprimeable number, because it can be changed into a prime (5212661221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104253200 + ... + 104253249.

It is an arithmetic number, because the mean of its divisors is an integer number (1077283325).

Almost surely, 2^5212661225 is an apocalyptic number.

It is an amenable number.

5212661225 is a deficient number, since it is larger than the sum of its proper divisors (1251038725).

5212661225 is a wasteful number, since it uses less digits than its factorization.

5212661225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208506459 (or 208506454 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 5212661225 is about 72198.7619353684. The cubic root of 5212661225 is about 1733.8831797470.

The spelling of 5212661225 in words is "five billion, two hundred twelve million, six hundred sixty-one thousand, two hundred twenty-five".