5218525 has 12 divisors (see below), whose sum is σ = 6969172. Its totient is φ = 3853440.

The previous prime is 5218519. The next prime is 5218529. The reversal of 5218525 is 5258125.

It can be written as a sum of positive squares in 6 ways, for example, as 643204 + 4575321 = 802^2 + 2139^2 .

It is not a de Polignac number, because 5218525 - 2⁷ = 5218397 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5218493 and 5218502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5218529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7704 + ... + 8353.

Almost surely, 2^5218525 is an apocalyptic number.

It is an amenable number.

5218525 is a deficient number, since it is larger than the sum of its proper divisors (1750647).

5218525 is a wasteful number, since it uses less digits than its factorization.

5218525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16080 (or 16075 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

The square root of 5218525 is about 2284.4091139724. The cubic root of 5218525 is about 173.4533090316.

The spelling of 5218525 in words is "five million, two hundred eighteen thousand, five hundred twenty-five".